I was up much of the night, listening to the wind whistle, worried about the creek flooding and trees crashing. I heard four of them in the dark, but none close by.
As soon as it was light I looked out the kitchen window, past the little sycamore I planted, through the woods towards the chicken coop.
A little hummingbird landed on a dying rose branch just in front of me, and clung to it tenaciously.
The wind was still strong, and ruffled its feathers.
A large gust almost tore him lose, and forced him to turn around on the branch.
He looked rather annoyed.
But he sat stubbornly, puffed up from the wind.
The anchors on the teevee are saying there has been an enormous number of downed trees and power outages, considering it wasn't that ferocious of a storm. They are blaming the fallen trees and broken branches on localized "microbursts". Ha!
Pages
- BASIC PREMISE + Research Links about Dying Trees
- Five Radio Interviews, Video of Fall Foliage + Contact Information
- More Links to Recent Research
- Visit the Apocalypsi Library at the End of the World
- Pillage, Plunder & Pollute, LLC - free download AND watch the movie - The Silent War on Trees
- Whispers From the Ghosting Trees - Guest Post at Greg Laden's Science Blog
Sunday, August 28, 2011
Saturday, August 27, 2011
Tar Sands Fraction
The Tar Sands Action group (which essentially is = to Bill McKibben) has deliberately made what they apparently thought was a very clever strategic decision, which is to directly warn Obama regarding support in the next election if he doesn't choose to halt the pipeline from Canada - an empty threat which seemed really stupid to me when I learned of it. Now they're being called out as fools, in this Time article "Greens Are Justifiably Mad About the Oil Sands Pipeline. But Sitting Out 2012 Elections Would Be Insane."
"...if you believe as Hansen and Bill McKibben that climate change is an existential threat to the human race, demanding immediate and overriding action, than Obama hasn't done nearly enough—nor have any of us. But greens are wrong to make their political stand on the Keystone pipeline, an obscure piece of infrastructure connected to a fossil fuel resource that isn't even American. How much will that matter to most Americans outside the green hardcore? Is this really the climate judgement upon which Obama should be judged? I don't think so.
And then there are the consequences. Environmentalists cannot possibly be serious when they threaten to sit out the 2012 elections if Keystone XL goes through. They cannot. With the exception of Jon Huntsman—who has about the same chance as you or I of becoming President—every Republican presidential candidate has expressed serious doubts about climate change, at the very least, and has threatened to eviscerate or even eliminate the Environmental Protection Agency. If greens want to sit out the election and help a President Rick Perry or a President Michele Bachmann become a reality, go ahead. It might even feel good. But the consequences would be far, far, far worse than any single pipeline."
In fact, making the pipeline the focus of the biggest environmental action since Earth Day always seemed misplaced to me, not least because every indication has been that it is going to proceed notwithstanding. Mostly though, there is so much more that *IS* an "existential threat" that the pipeline is the least of it. And now the State Dept. ruling referenced in the article, saying there would be no significant negative environmental impact from the tar sands - a judgment so lacking in common sense it is just surreal- is tantamount to the administration jeering at the whole protest. It's Obama's State Department, after all.
If 2000 people are galvanized to travel to DC to get arrested, it ought to have been about the entire industrial, corporatist system that has created all these converging catastrophes, not just one relatively minor source of total emissions or potential leaks. But I guess most activists and scientists are nothing but chickens when it comes to tackling the underlying assumptions that propel human civilization towards an earth-scale Easter Island fate. I'm not sure why they bother to whine and complain unless it just makes them feel better.
Here's a typical example from Think Progress, How Global Warming is Making Irene Worse:
"Global warming pollution is far from the only reason that Hurricane Irene shouldn’t be thought of as a 'natural' disaster. Much of the devastating potential of Hurricane Irene will be a consequence of past decisions about land use, construction and coastal preservation, mitigated by the brave work of public servants under attack by Tea Party conservatives. Even as we have polluted the climate to increase the threat from Atlantic storms, we have overbuilt the increasingly vulnerable coasts. Although Irene is being described as a “once in a lifetime” threat, the weight of the evidence indicates that this storm is merely a harbinger of our dangerous future."
Agreed, the number of people endangered by hurricanes is increased because of climate change, and decisions about land use and overbuilding the coasts but...NOT a word about what overpopulation has to do with all of that.
Oh well, unless the train tracks are still blocked by fallen trees, I'm still planning to go next week and protest in my Mothra costume! Here's the flyer I picked up yesterday from the printers - and down at the end of this post, a video of Richard Heinberg - who just published a terrific new book called "The End of Growth."
Here's the back:
"...if you believe as Hansen and Bill McKibben that climate change is an existential threat to the human race, demanding immediate and overriding action, than Obama hasn't done nearly enough—nor have any of us. But greens are wrong to make their political stand on the Keystone pipeline, an obscure piece of infrastructure connected to a fossil fuel resource that isn't even American. How much will that matter to most Americans outside the green hardcore? Is this really the climate judgement upon which Obama should be judged? I don't think so.
And then there are the consequences. Environmentalists cannot possibly be serious when they threaten to sit out the 2012 elections if Keystone XL goes through. They cannot. With the exception of Jon Huntsman—who has about the same chance as you or I of becoming President—every Republican presidential candidate has expressed serious doubts about climate change, at the very least, and has threatened to eviscerate or even eliminate the Environmental Protection Agency. If greens want to sit out the election and help a President Rick Perry or a President Michele Bachmann become a reality, go ahead. It might even feel good. But the consequences would be far, far, far worse than any single pipeline."
In fact, making the pipeline the focus of the biggest environmental action since Earth Day always seemed misplaced to me, not least because every indication has been that it is going to proceed notwithstanding. Mostly though, there is so much more that *IS* an "existential threat" that the pipeline is the least of it. And now the State Dept. ruling referenced in the article, saying there would be no significant negative environmental impact from the tar sands - a judgment so lacking in common sense it is just surreal- is tantamount to the administration jeering at the whole protest. It's Obama's State Department, after all.
If 2000 people are galvanized to travel to DC to get arrested, it ought to have been about the entire industrial, corporatist system that has created all these converging catastrophes, not just one relatively minor source of total emissions or potential leaks. But I guess most activists and scientists are nothing but chickens when it comes to tackling the underlying assumptions that propel human civilization towards an earth-scale Easter Island fate. I'm not sure why they bother to whine and complain unless it just makes them feel better.
Here's a typical example from Think Progress, How Global Warming is Making Irene Worse:
"Global warming pollution is far from the only reason that Hurricane Irene shouldn’t be thought of as a 'natural' disaster. Much of the devastating potential of Hurricane Irene will be a consequence of past decisions about land use, construction and coastal preservation, mitigated by the brave work of public servants under attack by Tea Party conservatives. Even as we have polluted the climate to increase the threat from Atlantic storms, we have overbuilt the increasingly vulnerable coasts. Although Irene is being described as a “once in a lifetime” threat, the weight of the evidence indicates that this storm is merely a harbinger of our dangerous future."
Agreed, the number of people endangered by hurricanes is increased because of climate change, and decisions about land use and overbuilding the coasts but...NOT a word about what overpopulation has to do with all of that.
Oh well, unless the train tracks are still blocked by fallen trees, I'm still planning to go next week and protest in my Mothra costume! Here's the flyer I picked up yesterday from the printers - and down at the end of this post, a video of Richard Heinberg - who just published a terrific new book called "The End of Growth."
GO THE LIMIT.org
Ice caps are melting, sea levels are rising.
The ocean is acidifying - the corals are bleaching.
The air is polluted...trees are losing their leaves and bark.
There isn't enough fresh water.
There are too many violent tornados, hurricanes, and blizzards.
Should we plead with our corrupt government to represent the people
instead of the corporate lobbyists and banksters?
Or maybe we should pray that Mothra will save us?
NO! That won't work either!
Americans are waking up to the converging dangers of climate change,
pollution, ocean acidification and overpopulation.
Please join us in the pledge to... GO THE LIMIT!
www.gothelimit.org presents a simple concept that ordinary folks can
participate in - easily, legally, without having to travel great distances.
Find out how YOU can be civilly Obedient!
Drive the legal limit on our nation's freeways, save gas and emissions.
Here's the back:
Have you noticed the trees are dying? Ozone is killing them.
www.witsendnj.blogspot.com has photos and links to research.
Wednesday, August 24, 2011
Anonymous Joins Occupy Wall Street!
This is an exciting and welcome addition to the action, which I first described in July. So far this effort has been an incoherent, fragmented impulse - it can't be called an organization - but then, that's what happens when a group eschews any form of leadership. And maybe that is a good thing. The hierarchical way things have been working so far is close to ravaging the Earth permanently. Someone asked me recently if things are so hopeless, what's the time frame? I answered that we cannot predict for the following reasons, which are interspersed with various views of the lovely lotus in the pond at Wit's End, because I can't decide which I like best.
1. We can't know what people will do. Most likely they will burn every drop of oil and every lump of coal, unless we first have so many energy (and food) wars that there is some sort of annihilating conflagration that puts and end to industrial civilization. Then whoever is left will burn all the trees.
2. Climate change is going to lurch forward in bursts as tipping points are crossed, and amplifying feedbacks kick in, such as the albedo effect, ocean current deflection from melting ice, permafrost melting and methane release, clathrate explosions, hydrogen sulfide poisons the oceans and then the air, as oxygen levels plummet.
3. All of the above has occurred before, and is documented in the paleoclimatic record. For it to happen again has already become inevitable, it has been set in motion and is unstoppable. No one is sure how quickly it will occur, but evidence from past extinctions points to centuries, or even decades. Ultimately it is possible that a runaway warming transpires and earth does not recover, the oceans boil, and it becomes like Venus. We'll be long gone before then, though.
4. One thing (I believe) that sets this extinction event apart from all others is tropospheric ozone. In the past climate change occurred because of fluctuations of CO2 in the atmosphere. Ozone in the troposphere, however, is exclusively the result of humans burning oil, gas and now biofuel. It's invisible, but highly caustic, causing epidemics of cancer, emphysema, asthma, heart disease and is linked to diabetes, autism, and Alzheimers.
It's also damaging trees and other plants, all over the world. Ozone interferes with their ability to photosynthesize by damaging stomates in foliage. Estimates of annual crop losses from stunted growth and reduced quality are in the billions of dollars globally. This is all well-documented in published scientific research, but virtually no one recognizes that trees that are exposed season after season are dying off at a rapidly accelerating rate.
It's also damaging trees and other plants, all over the world. Ozone interferes with their ability to photosynthesize by damaging stomates in foliage. Estimates of annual crop losses from stunted growth and reduced quality are in the billions of dollars globally. This is all well-documented in published scientific research, but virtually no one recognizes that trees that are exposed season after season are dying off at a rapidly accelerating rate.
Climate scientists by and large refuse to discuss the effect of ozone on climate, despite the fact that ozone in itself is the 3rd most important greenhouse gas (there is much less of it than CO2 but it is far more powerful), never mind the impact it will have on temperatures when plants and trees are no longer the major absorbers of CO2. They don't factor it into their models, and basically put their hands over their ears and scream "CO2! CO2! CO2!" whenever I bring it up.
So, to answer your question, I don't know how long we have, or if Gaia will survive the scourge of humanity. It's difficult to prepare for the unknown, and we are all just dodging bullets now. If you happen to be in Joplin, Missouri, or New Orleans, climate change has already ruined your world. I see even Branson's house on his private Caribbean island, that rents out at over $50k per night, was hit by lightening and burned down last night. [There is an mercilessly funny video of him at the end of this post where his overweening, idiotic conceit is punked by the YesMen.] No place will be really safe. There is even good evidence that melting ice will cause tectonic sheet deflection, increasing earthquakes and volcanic activity. [I wrote this several days ago before I felt the earthquake!]
...A couple of days ago I was discussing the prospect of arrest in the Tar Sands Action next week in Washington, DC with a reluctant participant and this is what I told her:
I am leaning towards getting arrested but if the fines go up I won't be able to afford it. Also Dmitri Orlov says it's stupid to make yourself a target of the authorities in any way since we're fucked no matter what. But I kinda like the idea of going down fighting. Keep in mind he has no children. And we do.There's an excellent interview with Orlov on his boat in Boston Harbor, in Transition Voice magazine, which is a wonderful resource with terrific writing that started publication about a year ago.
Here was the comment I left:
Here was the comment I left:
That was a great interview, I thought your editing was perfect Lindsay. Two things he said especially resonated with me:
First his observations about young people constructing artificial worlds on facebook and twitter “Because physical reality isn’t worth looking at anymore.”
And second, his comment about finding happiness in collapse because… “The alternative to collapse is this kind of nasty slow burn that leaves a completely devastated planet incapable of supporting life.”
The ecosystem is so degraded and, as Orlov mentions, people are oblivious to the signs and resent having it pointed out. I have been writing a blog about trees and plants dying from air pollution for over two years. Hardly anybody reads it even though it’s a well-documented fact from decades of scientific research that tropospheric ozone is toxic to vegetation. Even (or maybe especially) professional foresters, agronomists and climate scientists ignore the problem. To the extent they do acknowledge it, they blame insects, disease, fungus and weather which are all simply overwhelming trees that are already damaged.
I was talking to a college student about symptoms of tree decline and she pointed to one that happened to be next to us, which had wilted, brown leaves and broken branches. “I thought they were supposed to look like that” she said.
No, I told her. They used to be beautiful. In fact the world used to be beautiful – there were woods teaming with birds, and meadows full of wildflowers and butterflies.
People have forgotten already.
Thanks for your work at Transition Voice. It is good to know there are a few people who understand imminent collapse somewhere, because here in New Jersey, I am surrounded by Ignorers...
Following is a video of Dr. James Hansen, a scientist who will be remembered (if anyone is left to remember) as a prophet, discussing the runaway greenhouse effect. I love it because he manages to portend the worst of the worst of all possible world scenarios with affable calm. If you close your eyes and just listen to the comforting, melodious cadence of his speech, tinged with a genial incredulity, you might believe everything will be for the best, in this, the best of all Panglossian worlds.
Monday, August 22, 2011
Tar Sands Action - Rock the Limousine!
I've got an Amtrak ticket to Washington DC for the Tar Sands Action at the end of the month. This gentleman from Madison, Wisconson expresses my sentiments about the demonstration perfectly.
Friday, August 19, 2011
Killer Trees
A sudden and brief storm abruptly ended a music festival in Belgium last night. Here is how the tragedy occurred, according to the UK Guardian:
"Five people have been killed and more than 70 injured after a stage collapsed during a storm at the Pukkelpop festival near Hasselt in eastern Belgium. One or more trees came down in strong winds, damaging rigging and bringing down the Chateau stage where American band the Smith Westerners were playing. The remainder of the festival has been cancelled.
As it happens, along these lines I recently wrote a letter to Dr. Thomas Schmidlin, a professor at Kent State University, who penned an article for the Tree Care Industry Association, titled "Deaths from Wind-Related Tree Failures". Of course finding this study was tremendously exciting for me, because an increasing tally of deaths and injuries from falling trees would be one way to indicate, although not conclusively prove, a wide-spread decline in their health from exposure to poisonous greenhouse gases. The data in his research stops at 2007 however, and since I personally did not notice universal damage until 2008, I was hopeful he could help direct me as to where to find information after that year.I suppose that the underlying point of his article is to encourage people to pay arborists to trim their trees, but I'll copy it below so people can make up their own minds. In any event Dr. Schmidlin didn't appear to be even a smidge (sorry!) interested in the fact that trees are on an extinction trajectory from ozone - as can be inferred from his eventual response, which arrived after I sent him a second request this morning. Here's my original email, sent July 30:
YES, I MADE THE MAP FROM OUR DATA.
NO, I HAVE NOT UPDATED ANY OF THE DATA OR MAPS.
TRY SEARCHING FOR "STORM DATA" IN GOOGLE AND YOU SHOULD FIND THE STORM EVENTS DATABASE. I HAVE NOT COLLECTED ANY DATA 2007 TO PRESENT AND AM NOT AWARE OF ANYONE WHO HAS.
AGAIN, YOU CAN PROBABLY SEARCH FOR THESE AND FIND THEM THROUGH GOOGLE.
NO, I NEVER FOUND DATA FOR THAT.
and so, I replied in kind:
THANK YOU VERY MUCH.
Following is the entire article. (It's kind of long, so I've added photos from storms in Wisconsin and New Jersey last month to the three, undated, original pictures. There were lots more to choose from, which sort of begs the question...how could a couple of random summer storms knock down so many trees? Well, in some of them you can tell they are rotted.)
Deaths from Wind-Related Tree Failures
By Thomas W. Schmidlin, Ph.D.
We prune for aesthetics, we prune for tree health, and new research confirms the need to prune for safety.
Recent research conducted at Kent State University examines the hazard posed by trees to human health and life during severe weather. Data maintained by the National Climatic Data Center tracks information on storm fatalities in the United States. Examination of this data revealed that fallen trees accounted for 407 deaths between 1995 and 2007.
Fallen trees or limbs caused 53 percent of all deaths from thunderstorms in this period, 46 percent of the deaths from nonconvective high winds, 31 percent of all tropical cyclone deaths, and 4 percent of the deaths from tornadoes. Nonconvective winds are those high winds associated with large pressure gradients in mid-latitude, low-pressure areas, and also winds of dust storms and down slope and gap winds, as may occur in mountains.

Summarizing deaths from wind-related tree failures in the United States allows arborists to place this hazard in the context of other severe weather hazards in the United States. It forms a basis for comparisons with similar hazards elsewhere, and provides guidance for improved preparedness and safety recommendations.
Tree species vary in their resistance to breakage or being uprooted. Vulnerability for failure is further affected by tree age, size and health, and local site conditions of exposure, slope, soil type, soil moisture and adjacent trees. A tree’s resistance to stem breakage under load can also be affected by temperature. Additional information on the resistance of trees to breakage or being uprooted can be found in “Trees and Wind: A Bibliography for Tree Care Professionals” by Scott Cullen (Journal of Arboriculture, January 2002).
The goal of the Kent State research was not to assess wind speeds associated with deaths from fallen trees, but some estimates are provided from the literature. The Enhanced Fujita Scale for ranking intensity of tornadoes includes estimates of the three-second-gust speeds necessary for damage to trees (www.spc.noaa.gov/efscale/ef-scale.html).

For hardwood trees, such as oak, maple, birch and ash, a three-second gust of 74 mph will break large (greater than 1 inch) branches, 91 mph will uproot trees, and 110 mph will snap tree trunks. For softwood trees such as pine, spruce, fir and hemlock, a three-second gust of 75 mph will break large branches, 87 mph will uproot trees, and 104 mph will snap tree trunks. These are not absolute numbers but a value near the middle of the range of minimum wind speeds expected to cause the damage.

Wind speeds of these magnitudes occur with weak tropical cyclones, weak tornadoes, thunderstorm downbursts and winds associated with mid-latitude cyclones, among other meteorological events. In addition, heavy accumulations of snow or ice may cause trees to fail even with lighter wind speeds.
The online resource Storm Data (www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwEvent~Storms) was searched for events for all 50 states with at least one death under the event categories of tornadoes, hurricanes and tropical storms, thunderstorms and high winds, or snow and ice. Storm Data contains the best national information available for these hazards and is the primary source used to examine past severe weather events, in spite of some omissions and inconsistencies in the data.

In addition, the Tornado Project Web site (www.tornadoproject.com) was examined for deaths from tornadoes, and the annual review of the Atlantic hurricane season as published in Monthly Weather Review was consulted for additional details on deaths during tropical cyclones. The National Weather Service’s Service Assessments published after severe weather events were also consulted. Summaries of deaths associated with Hurricanes Marilyn, Opal and Katrina were obtained from Morbidity and Mortality Weekly Report. Deaths from Hurricane Katrina in Mississippi and Louisiana are not included here due to uncertainty in the data, although indications are that at least 15 deaths were caused across inland Mississippi due to fallen trees.
The sex and age of the victims were recorded, along with the state, county and weather event type. If a fallen tree or limb was given as the cause of death, it was considered a death from a wind-related tree failure. The location where the person was when struck by the fallen tree, such as outdoors, in a vehicle, in a mobile home or in a frame house was noted. Deaths in campers, tents, on motorcycles or on all-terrain vehicles were considered “outdoors.”

Deaths in vehicles struck by a fallen tree and in vehicles that struck a fallen tree on the road were considered to have been caused by the fallen tree. Deaths from vehicles veering off the road and into a tree were not considered as a tree related death. Deaths from falling trees or limbs a few hours after the trees were damaged by wind were counted as fallen tree deaths. Deaths from trees being cut or trimmed before the storm or during tree removal after the storm were not included. Although not always associated with high winds, deaths caused by trees or limbs that fell under the weight of snow or ice were included in this database as trees that failed as a result of severe weather.
There were 407 deaths caused by wind related tree failures in the United States during 1995-2007, an average of 31 per year. These occurred in 41 states and the District of Columbia. Of the 407 known deaths caused by wind-related tree failure during 1995-2007, the location of the victim (such as in vehicle, outdoors, in house) was known for all 407 deaths, age was known for 392 (96 percent), and sex was known for 391 (96 percent). Most (62 percent) of the victims were male with a median age of 44 years. Forty-four percent were struck by a fallen tree or limb while in a vehicle, 38 percent were struck outdoors, and 18 percent were struck while in their home – half in a mobile home and half in a frame house. Table 1 contains a summary of this information.
The regional distributions of deaths are shown on the map (Fig. 1, next page). Most incidents involved a single death, however, two fallen trees caused four deaths each. A falling tree struck a school bus carrying 10 children during a nonconvective high wind event in Queens, New York City, on March 6, 1997, killing four and injuring six. A tree fell on a vehicle in Yakima County, Washington, on August 26, 1997, killing all four occupants. This event is listed as a “high wind” in Storm Data, although other damaging events that day are listed as “thunderstorms.” The discussion below examines deaths based on the type of severe weather that caused the fallen trees.
Thunderstorm winds
There were 165 deaths from fallen trees caused by thunderstorm winds. About 40 percent of these thunderstorms are expected to have been associated with derechos. Derechos are widespread, long-lived windstorms that are associated with bands of rapidly moving showers or thunderstorms. Most (58 percent) of the deaths were male, the median age was 39 years (range 1-89 years), and deaths occurred primarily to persons in vehicles (47 percent) and outdoors (40 percent).


Deaths from fallen trees in thunderstorms occurred almost entirely (96 percent) east of the Great Plains (100oW longitude). This is perhaps due to lower population density and fewer trees to the west on the Great Plains or possibly the result of fewer severe thunderstorms farther west. A concentration of deaths occurred in the Megalopolis region from southern New England to northern Virginia, where population density is greatest. Most (78 percent) deaths occurred during May through August, when thunderstorms are most frequent in the eastern United States.

Nonconvective high winds
There were 143 deaths from fallen trees caused by nonconvective high-wind events. Most (61 percent) of the deaths were males, the median age was 45 years (range 1-90 years), and deaths occurred most commonly to persons in vehicles (50 percent) and outdoors (38 percent) (Table 1). Deaths from fallen trees during nonconvective wind events occurred most frequently in the Pacific Northwest and the mid-Atlantic coastal region followed by California and the southern Appalachians. There were three deaths in Hawaii.

Most (88 percent) deaths occurred during October through April, when mid-latitude cyclones are strongest. Although it occurred prior to the period studied here, one of the deadliest nonconvective windstorms in history killed more than 40 people in the Pacific Northwest in October 1962, many due to fallen trees.
Tropical cyclones
There were 57 deaths from fallen trees caused by 15 tropical cyclones during 1995-2007, not including deaths from Hurricane Katrina in Louisiana and Mississippi. Two-thirds (68 percent) of the deaths were male, the median age was 45 years (range 3-87 years), and deaths occurred in nearly equal numbers to people in homes, in vehicles or outdoors (Table 1).
The deaths occurred in 11 states from Texas to Vermont and all occurred within 200 miles of the coast. North Carolina had the most deaths with 14. Deaths occurred only in the months July through October, with a peak (58 percent) in September, corresponding with the tropical cyclone season in the North Atlantic. Trees may be especially vulnerable to uprooting or breakage during the winds of tropical cyclones due to the heavy rains that may weaken the soil strength. An additional factor is the existence of dense tree canopies on deciduous trees during the tropical cyclone season. The wind force placed on the canopies increase the likelihood of tree failure.
Tornadoes
There were 28 deaths that were directly the result of fallen trees during tornadoes. Of the 28 fatalities from tornado-fallen trees, 69 percent were males and the median age was 52 years (range 13-91 years). The most common location of a person killed by a fallen tree during a tornado was in a home (42 percent), followed by in a vehicle (32 percent) and outdoors (25 percent).

Fatalities from fallen trees during a tornado occurred in 14 states, all in the eastern half of the United States, with Arkansas having the most (four) of any state. Although tornadoes are most common in spring and summer, deaths from fallen trees associated with tornadoes did not show this same strong seasonality. Deaths occurred in all months except July, and 32 percent of the total occurred in two months, April or November.
In two cases there were multiple fatalities. Two men died in Simsboro, La., when their truck was crushed by a tree, and two men seeking shelter in a ditch near Denmark, Ark., were killed by a tree. The descriptions in Storm Data for the tornadoes that caused one or more deaths from wind related tree failures typically showed a path length of 5 miles and path width of 200 yards.

More than one-third (38 percent) of the deaths from wind related tree failures were associated with tornadoes rated F0 or F1 on the Fujita Scale, yet only 7 percent of deaths from tornadoes during 1995-2007 were from tornadoes rated F0 or F1. This emphasizes that risk of death from wind related tree failures increases at wind speeds of 70-90 mph. This is a lower threshold than associated with risk for death from high winds due to destruction of houses or vehicles.
Snow and Ice
Fourteen people were killed by falling trees or limbs due to heavy accumulations of snow or ice. Most were males who were outdoors. Ice accumulations were the cause in 10 of the 14 deaths.
The median age was 69 years (29-78 years). These deaths were concentrated in the northeastern portion of the United States and in Washington state, a pattern that aligns with the regions experiencing the maximum number of hours with freezing rain. Somewhat surprisingly, there were two deaths in Louisiana following an ice storm. Deaths from fallen trees due to snow or ice occurred from October to April, with 50 percent in December.

Summary
Deaths from wind related tree failures occurred in 41 states and the District of Columbia. New York had the most (30), followed by Washington (28), Pennsylvania (27), Georgia (24), and North Carolina (24). A death rate was calculated for each state by dividing the total deaths from wind-related tree failures during 1995-2007 in each state by the 2000 state population in millions. Mississippi (5.3 deaths/million), New Hampshire (4.9 deaths/million), and Washington (4.8 deaths/million) were the three highest rates in the country. These 13 years of results are noteworthy, but the associated statistics could change significantly with the addition of a few deadly storm events in the future.
Persons killed by wind-related tree failures during tropical cyclones and tornadoes were more commonly at home (~40 percent) when struck than those killed by thunderstorm and nonconvective high winds (~12 percent at home). A tornado warning or hurricane warning causes people to seek shelter indoors. In contrast, driving and other ordinary daily activities continue during thunderstorms and nonconvective high winds, placing people who are in vehicles or outdoors at risk from fallen trees.
In addition to deaths caused directly by fallen trees, as summarized here, wind-related tree failures cause many non-fatal, but life-changing injuries. Indirect deaths and additional suffering are caused by trees that have fallen on roads and blocked rescue to injured persons. Additional indirect deaths and injuries occur when trees or limbs broken in a storm, known as “widow-makers,” fall later. Unsound or dead trees or large limbs also fall and cause deaths without the presence of severe weather, and are not included here.

People will always live and spend leisure time around trees and trees provide many benefits to our environment. Meanwhile, the legal liability of tree owners for damages caused by fallen trees has been rising in the United States. The risks from fallen trees described here emphasize the need to maintain trees in a healthy and structurally sound state in order to minimize risk.
Even healthy and sound trees may be broken or felled by strong winds or ice accumulations, so severe weather safety recommendations should continue to emphasize seeking shelter in sturdy buildings when any type of high winds are expected. Risks to people outdoors in tents or campers may be reduced if they are directed to seek shelter in a sturdy building or, if none is available, enter their vehicle and park in an open area away from trees for the duration of the high winds.

As a professional, the arborist needs to actively advocate for the selection and planting of those varieties of trees that are less susceptible to deadly breakage or uprooting. A continued effort should be exerted to educate property owners of the need for proper tree maintenance aimed at sustaining the health/structure of the tree and thereby minimizing harmful effects from storm-related stress. A tree risk assessment and tree risk management program should be in place, especially in public areas such as along roads and in parks.
And that's the end of article. As advised by Dr. Schmidlin, I started googling away, which as usual easily ate up the better part of the day. Before I get to NOAA's data though, I got sidetracked looking at reports from MunichRe, which of course compiles and compares losses from weather-related and natural disaster insurance claims.
The 2010 report had this chart informing us that average thunderstorm losses have quintupled since the early 1980's!
But it gets even better in the latest report, which is hugely entertaining to read in general, by the way, for all the tornados, earthquakes, tsunamis and floods. Just. Staggering. But since this blog is concerned with trees dying from tropospheric ozone, and a large portion of damage attributable to thunderstorms is done by trees, we'll stick to two charts delineating those losses.
First, on top of the quintupling of damages over the past 25 years noted in 2010, the first half of this year the losses were DOUBLE the 2005-2010 5-year average. Is this an accelerating trend, or what? This first chart is comparing January to June tallies.
Next I skipped over to NOAA to compare their wind damage reports (it's not clear how much of this is due to trees but I'm assuming a significant portion...I wrote to ask and will update if I get a reply). In case the maps that follow don't make it obvious enough, I listed the numerical tabulations for reported wind damage, which is calculated in charts below the maps on the NOAA website (again, this is separate from tornado damage):
2000 - 12,098
2001 - 11,873
2001 - 11,772
2003 - 11,873
2004 - 11,793
2005 - 12,016
2006 - 13,669
2007 - 12,918
2008 - 16,819
2009 - 11,408
2010 - 14,087
2011 - 16,350 - and it's only August
I didn't copy every single year, and the maps only go back ten years:
So, could this be happening because storms are increasing in intensity from climate change? You betcha! But it's also happening because trees are weaker. Damage to foliage from absorbing ozone causes trees to work harder at growing their shoots, and reduces the carbohydrate energy allocated to a healthy root system, so they are more likely to blow over. And from the number of rotted branches easily ascertained by just looking at trees, there's something less than benign going on internally there too.
[The maps and charts from different years can be accessed by changing the date in the url.]
Oops, almost forgot. It was first daughter's birthday, so I made her a favorite dessert - a puff pastry shell, lined with crunchy caramel, vanilla pastry cream, strawberries, blueberries, peaches and raspberries, glazed with apricot jam thinned with cognac. Happy Birthday!
"Five people have been killed and more than 70 injured after a stage collapsed during a storm at the Pukkelpop festival near Hasselt in eastern Belgium. One or more trees came down in strong winds, damaging rigging and bringing down the Chateau stage where American band the Smith Westerners were playing. The remainder of the festival has been cancelled.
The Shelter stage was also damaged but is not thought to have caused any injuries. Some giant TV screens also fell down.
An estimated 60,000 people were at the three-day festival when the storm broke on Thursday.
Video from the site showed stage equipment dangling in gales as rain-battered festivalgoers ran for shelter."
Immediately afterwards a member of the band tweeted "Stage collapsed max almost got crushed by the trees".
Festival-goer Catherine Blaise told Le Soir newspaper: “The sky suddenly turned pitch black and we took shelter waiting for the rain. Then suddenly, there was a downpour. The wind blew violently.
“There were hailstones bigger than a centimeter falling... Trees toppled over. It was unbelievable, the end of the world.”
These screenshots of the aftermath came from a video uploaded on youtube. The camera panned the large campground, a flat muddy field which is surrounded by trees. Did they start out before the storm with such thin crowns, or did the wind rip the leaves off the branches? I can't say. But I do know two things - 1) the leaves are falling off the trees here in New Jersey, leaving them transparent; and 2) we can add this episode to the growing roster of people killed and property damaged by breaking branches and crashing trees. Oh, did I mention that the inexorably intensifying level of air pollution is toxic to plants?
As it happens, along these lines I recently wrote a letter to Dr. Thomas Schmidlin, a professor at Kent State University, who penned an article for the Tree Care Industry Association, titled "Deaths from Wind-Related Tree Failures". Of course finding this study was tremendously exciting for me, because an increasing tally of deaths and injuries from falling trees would be one way to indicate, although not conclusively prove, a wide-spread decline in their health from exposure to poisonous greenhouse gases. The data in his research stops at 2007 however, and since I personally did not notice universal damage until 2008, I was hopeful he could help direct me as to where to find information after that year.
Dear Dr. Schmidlin,
I've been reading this article that you wrote, about deaths and injuries from falling trees.
This link doesn't work for me: (www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwEvent~Storms) and I would very much like to know if there has been an increasing trend in deaths, injuries, property damage and in general, falling branches and trees for the period of time you analyzed, up to 2007 - and in addition, particularly since then to the present. Do you have access to that data or do you know of anyone compiling such information? Do you have a link for "The National Weather Service's Service Assessments" which you said you also consulted?
I noticed in 2008 that a widespread and dramatic dieback of trees had begun across the country, and I would be very interested to see if that is reflected in the statistics (factoring in somehow of course more frequent and more violent storms from climate change!). I've been collecting photos of trees damaged by exposure to ozone pollution and links to scientific research on a blog, here.
Also, you state in the article, "Unsound or dead trees or large limbs also fall and cause deaths without the presence of severe weather, and are not included here." Do you know of any place where that information would exist?
Any assistance you can give me would be greatly appreciated.
Sincerely,
Gail Zawacki
Oldwick, NJ
After I re-sent the letter, also inquiring about the origin of the map in the article, he returned answers interlined in the text in the following manner -
NO, I HAVE NOT UPDATED ANY OF THE DATA OR MAPS.
TRY SEARCHING FOR "STORM DATA" IN GOOGLE AND YOU SHOULD FIND THE STORM EVENTS DATABASE. I HAVE NOT COLLECTED ANY DATA 2007 TO PRESENT AND AM NOT AWARE OF ANYONE WHO HAS.
AGAIN, YOU CAN PROBABLY SEARCH FOR THESE AND FIND THEM THROUGH GOOGLE.
NO, I NEVER FOUND DATA FOR THAT.
and so, I replied in kind:
THANK YOU VERY MUCH.
Following is the entire article. (It's kind of long, so I've added photos from storms in Wisconsin and New Jersey last month to the three, undated, original pictures. There were lots more to choose from, which sort of begs the question...how could a couple of random summer storms knock down so many trees? Well, in some of them you can tell they are rotted.)
Deaths from Wind-Related Tree Failures
By Thomas W. Schmidlin, Ph.D.
We prune for aesthetics, we prune for tree health, and new research confirms the need to prune for safety.
Fallen trees or limbs caused 53 percent of all deaths from thunderstorms in this period, 46 percent of the deaths from nonconvective high winds, 31 percent of all tropical cyclone deaths, and 4 percent of the deaths from tornadoes. Nonconvective winds are those high winds associated with large pressure gradients in mid-latitude, low-pressure areas, and also winds of dust storms and down slope and gap winds, as may occur in mountains.

Summarizing deaths from wind-related tree failures in the United States allows arborists to place this hazard in the context of other severe weather hazards in the United States. It forms a basis for comparisons with similar hazards elsewhere, and provides guidance for improved preparedness and safety recommendations.
Tree species vary in their resistance to breakage or being uprooted. Vulnerability for failure is further affected by tree age, size and health, and local site conditions of exposure, slope, soil type, soil moisture and adjacent trees. A tree’s resistance to stem breakage under load can also be affected by temperature. Additional information on the resistance of trees to breakage or being uprooted can be found in “Trees and Wind: A Bibliography for Tree Care Professionals” by Scott Cullen (Journal of Arboriculture, January 2002). ![]() |
| Note: Not only does the fallen tree have bare branches, the one standing behind it does also! |

For hardwood trees, such as oak, maple, birch and ash, a three-second gust of 74 mph will break large (greater than 1 inch) branches, 91 mph will uproot trees, and 110 mph will snap tree trunks. For softwood trees such as pine, spruce, fir and hemlock, a three-second gust of 75 mph will break large branches, 87 mph will uproot trees, and 104 mph will snap tree trunks. These are not absolute numbers but a value near the middle of the range of minimum wind speeds expected to cause the damage.

Wind speeds of these magnitudes occur with weak tropical cyclones, weak tornadoes, thunderstorm downbursts and winds associated with mid-latitude cyclones, among other meteorological events. In addition, heavy accumulations of snow or ice may cause trees to fail even with lighter wind speeds.

The online resource Storm Data (www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwEvent~Storms) was searched for events for all 50 states with at least one death under the event categories of tornadoes, hurricanes and tropical storms, thunderstorms and high winds, or snow and ice. Storm Data contains the best national information available for these hazards and is the primary source used to examine past severe weather events, in spite of some omissions and inconsistencies in the data.

In addition, the Tornado Project Web site (www.tornadoproject.com) was examined for deaths from tornadoes, and the annual review of the Atlantic hurricane season as published in Monthly Weather Review was consulted for additional details on deaths during tropical cyclones. The National Weather Service’s Service Assessments published after severe weather events were also consulted. Summaries of deaths associated with Hurricanes Marilyn, Opal and Katrina were obtained from Morbidity and Mortality Weekly Report. Deaths from Hurricane Katrina in Mississippi and Louisiana are not included here due to uncertainty in the data, although indications are that at least 15 deaths were caused across inland Mississippi due to fallen trees.
The sex and age of the victims were recorded, along with the state, county and weather event type. If a fallen tree or limb was given as the cause of death, it was considered a death from a wind-related tree failure. The location where the person was when struck by the fallen tree, such as outdoors, in a vehicle, in a mobile home or in a frame house was noted. Deaths in campers, tents, on motorcycles or on all-terrain vehicles were considered “outdoors.”

Deaths in vehicles struck by a fallen tree and in vehicles that struck a fallen tree on the road were considered to have been caused by the fallen tree. Deaths from vehicles veering off the road and into a tree were not considered as a tree related death. Deaths from falling trees or limbs a few hours after the trees were damaged by wind were counted as fallen tree deaths. Deaths from trees being cut or trimmed before the storm or during tree removal after the storm were not included. Although not always associated with high winds, deaths caused by trees or limbs that fell under the weight of snow or ice were included in this database as trees that failed as a result of severe weather.
There were 407 deaths caused by wind related tree failures in the United States during 1995-2007, an average of 31 per year. These occurred in 41 states and the District of Columbia. Of the 407 known deaths caused by wind-related tree failure during 1995-2007, the location of the victim (such as in vehicle, outdoors, in house) was known for all 407 deaths, age was known for 392 (96 percent), and sex was known for 391 (96 percent). Most (62 percent) of the victims were male with a median age of 44 years. Forty-four percent were struck by a fallen tree or limb while in a vehicle, 38 percent were struck outdoors, and 18 percent were struck while in their home – half in a mobile home and half in a frame house. Table 1 contains a summary of this information.
The regional distributions of deaths are shown on the map (Fig. 1, next page). Most incidents involved a single death, however, two fallen trees caused four deaths each. A falling tree struck a school bus carrying 10 children during a nonconvective high wind event in Queens, New York City, on March 6, 1997, killing four and injuring six. A tree fell on a vehicle in Yakima County, Washington, on August 26, 1997, killing all four occupants. This event is listed as a “high wind” in Storm Data, although other damaging events that day are listed as “thunderstorms.” The discussion below examines deaths based on the type of severe weather that caused the fallen trees.
Thunderstorm winds
There were 165 deaths from fallen trees caused by thunderstorm winds. About 40 percent of these thunderstorms are expected to have been associated with derechos. Derechos are widespread, long-lived windstorms that are associated with bands of rapidly moving showers or thunderstorms. Most (58 percent) of the deaths were male, the median age was 39 years (range 1-89 years), and deaths occurred primarily to persons in vehicles (47 percent) and outdoors (40 percent).


Deaths from fallen trees in thunderstorms occurred almost entirely (96 percent) east of the Great Plains (100oW longitude). This is perhaps due to lower population density and fewer trees to the west on the Great Plains or possibly the result of fewer severe thunderstorms farther west. A concentration of deaths occurred in the Megalopolis region from southern New England to northern Virginia, where population density is greatest. Most (78 percent) deaths occurred during May through August, when thunderstorms are most frequent in the eastern United States.

Nonconvective high winds
There were 143 deaths from fallen trees caused by nonconvective high-wind events. Most (61 percent) of the deaths were males, the median age was 45 years (range 1-90 years), and deaths occurred most commonly to persons in vehicles (50 percent) and outdoors (38 percent) (Table 1). Deaths from fallen trees during nonconvective wind events occurred most frequently in the Pacific Northwest and the mid-Atlantic coastal region followed by California and the southern Appalachians. There were three deaths in Hawaii.

Most (88 percent) deaths occurred during October through April, when mid-latitude cyclones are strongest. Although it occurred prior to the period studied here, one of the deadliest nonconvective windstorms in history killed more than 40 people in the Pacific Northwest in October 1962, many due to fallen trees.
Tropical cyclones
There were 57 deaths from fallen trees caused by 15 tropical cyclones during 1995-2007, not including deaths from Hurricane Katrina in Louisiana and Mississippi. Two-thirds (68 percent) of the deaths were male, the median age was 45 years (range 3-87 years), and deaths occurred in nearly equal numbers to people in homes, in vehicles or outdoors (Table 1).

The deaths occurred in 11 states from Texas to Vermont and all occurred within 200 miles of the coast. North Carolina had the most deaths with 14. Deaths occurred only in the months July through October, with a peak (58 percent) in September, corresponding with the tropical cyclone season in the North Atlantic. Trees may be especially vulnerable to uprooting or breakage during the winds of tropical cyclones due to the heavy rains that may weaken the soil strength. An additional factor is the existence of dense tree canopies on deciduous trees during the tropical cyclone season. The wind force placed on the canopies increase the likelihood of tree failure.
![]() |
| Baby calves were okay! |
There were 28 deaths that were directly the result of fallen trees during tornadoes. Of the 28 fatalities from tornado-fallen trees, 69 percent were males and the median age was 52 years (range 13-91 years). The most common location of a person killed by a fallen tree during a tornado was in a home (42 percent), followed by in a vehicle (32 percent) and outdoors (25 percent).

Fatalities from fallen trees during a tornado occurred in 14 states, all in the eastern half of the United States, with Arkansas having the most (four) of any state. Although tornadoes are most common in spring and summer, deaths from fallen trees associated with tornadoes did not show this same strong seasonality. Deaths occurred in all months except July, and 32 percent of the total occurred in two months, April or November.
In two cases there were multiple fatalities. Two men died in Simsboro, La., when their truck was crushed by a tree, and two men seeking shelter in a ditch near Denmark, Ark., were killed by a tree. The descriptions in Storm Data for the tornadoes that caused one or more deaths from wind related tree failures typically showed a path length of 5 miles and path width of 200 yards.

More than one-third (38 percent) of the deaths from wind related tree failures were associated with tornadoes rated F0 or F1 on the Fujita Scale, yet only 7 percent of deaths from tornadoes during 1995-2007 were from tornadoes rated F0 or F1. This emphasizes that risk of death from wind related tree failures increases at wind speeds of 70-90 mph. This is a lower threshold than associated with risk for death from high winds due to destruction of houses or vehicles.
Snow and Ice
Fourteen people were killed by falling trees or limbs due to heavy accumulations of snow or ice. Most were males who were outdoors. Ice accumulations were the cause in 10 of the 14 deaths.
The median age was 69 years (29-78 years). These deaths were concentrated in the northeastern portion of the United States and in Washington state, a pattern that aligns with the regions experiencing the maximum number of hours with freezing rain. Somewhat surprisingly, there were two deaths in Louisiana following an ice storm. Deaths from fallen trees due to snow or ice occurred from October to April, with 50 percent in December.

Summary
Deaths from wind related tree failures occurred in 41 states and the District of Columbia. New York had the most (30), followed by Washington (28), Pennsylvania (27), Georgia (24), and North Carolina (24). A death rate was calculated for each state by dividing the total deaths from wind-related tree failures during 1995-2007 in each state by the 2000 state population in millions. Mississippi (5.3 deaths/million), New Hampshire (4.9 deaths/million), and Washington (4.8 deaths/million) were the three highest rates in the country. These 13 years of results are noteworthy, but the associated statistics could change significantly with the addition of a few deadly storm events in the future.
Persons killed by wind-related tree failures during tropical cyclones and tornadoes were more commonly at home (~40 percent) when struck than those killed by thunderstorm and nonconvective high winds (~12 percent at home). A tornado warning or hurricane warning causes people to seek shelter indoors. In contrast, driving and other ordinary daily activities continue during thunderstorms and nonconvective high winds, placing people who are in vehicles or outdoors at risk from fallen trees.
In addition to deaths caused directly by fallen trees, as summarized here, wind-related tree failures cause many non-fatal, but life-changing injuries. Indirect deaths and additional suffering are caused by trees that have fallen on roads and blocked rescue to injured persons. Additional indirect deaths and injuries occur when trees or limbs broken in a storm, known as “widow-makers,” fall later. Unsound or dead trees or large limbs also fall and cause deaths without the presence of severe weather, and are not included here.
People will always live and spend leisure time around trees and trees provide many benefits to our environment. Meanwhile, the legal liability of tree owners for damages caused by fallen trees has been rising in the United States. The risks from fallen trees described here emphasize the need to maintain trees in a healthy and structurally sound state in order to minimize risk.
Even healthy and sound trees may be broken or felled by strong winds or ice accumulations, so severe weather safety recommendations should continue to emphasize seeking shelter in sturdy buildings when any type of high winds are expected. Risks to people outdoors in tents or campers may be reduced if they are directed to seek shelter in a sturdy building or, if none is available, enter their vehicle and park in an open area away from trees for the duration of the high winds.

As a professional, the arborist needs to actively advocate for the selection and planting of those varieties of trees that are less susceptible to deadly breakage or uprooting. A continued effort should be exerted to educate property owners of the need for proper tree maintenance aimed at sustaining the health/structure of the tree and thereby minimizing harmful effects from storm-related stress. A tree risk assessment and tree risk management program should be in place, especially in public areas such as along roads and in parks.
And that's the end of article. As advised by Dr. Schmidlin, I started googling away, which as usual easily ate up the better part of the day. Before I get to NOAA's data though, I got sidetracked looking at reports from MunichRe, which of course compiles and compares losses from weather-related and natural disaster insurance claims.
The 2010 report had this chart informing us that average thunderstorm losses have quintupled since the early 1980's!
But it gets even better in the latest report, which is hugely entertaining to read in general, by the way, for all the tornados, earthquakes, tsunamis and floods. Just. Staggering. But since this blog is concerned with trees dying from tropospheric ozone, and a large portion of damage attributable to thunderstorms is done by trees, we'll stick to two charts delineating those losses.
First, on top of the quintupling of damages over the past 25 years noted in 2010, the first half of this year the losses were DOUBLE the 2005-2010 5-year average. Is this an accelerating trend, or what? This first chart is comparing January to June tallies.
The next chart below compares annual totals with the first half of 2011.
Next I skipped over to NOAA to compare their wind damage reports (it's not clear how much of this is due to trees but I'm assuming a significant portion...I wrote to ask and will update if I get a reply). In case the maps that follow don't make it obvious enough, I listed the numerical tabulations for reported wind damage, which is calculated in charts below the maps on the NOAA website (again, this is separate from tornado damage):
2000 - 12,098
2001 - 11,873
2001 - 11,772
2003 - 11,873
2004 - 11,793
2005 - 12,016
2006 - 13,669
2007 - 12,918
2008 - 16,819
2009 - 11,408
2010 - 14,087
2011 - 16,350 - and it's only August
I didn't copy every single year, and the maps only go back ten years:
2000
2001
2003
2007
2008
2010
2011 - SO FAR!
So, could this be happening because storms are increasing in intensity from climate change? You betcha! But it's also happening because trees are weaker. Damage to foliage from absorbing ozone causes trees to work harder at growing their shoots, and reduces the carbohydrate energy allocated to a healthy root system, so they are more likely to blow over. And from the number of rotted branches easily ascertained by just looking at trees, there's something less than benign going on internally there too.
[The maps and charts from different years can be accessed by changing the date in the url.]
Oops, almost forgot. It was first daughter's birthday, so I made her a favorite dessert - a puff pastry shell, lined with crunchy caramel, vanilla pastry cream, strawberries, blueberries, peaches and raspberries, glazed with apricot jam thinned with cognac. Happy Birthday!
Subscribe to:
Posts (Atom)
Blog Archive
My Blog List
-
-
-
-
-
-
-
The Vineyards of Vostok10 years ago
-
-
-
Make US Great Again8 years ago
-
-
May Flowers4 months ago
-
Apex Predator Irony3 years ago
-
Our motto.7 years ago
-
-
-
-
-
Here’s Your Proof9 years ago
-
Signs Posted In December 20257 months ago
-
Stunning recovery of Arctic Sea Ice13 years ago
-
-
-
-
-
-
Moderate PM 2.5 along West Coast7 years ago
-
-
-








































