This view is looking out my kitchen window just after sunset, at the steep hill that looms above Wit's End. When I moved here just about a dozen years ago, the woods were impenetrable. You could barely walk through without a machete, and you couldn't see through to the sky, even in winter, from the ground up to the tops of the trees. Since then, so much of the understory has died, and so many trees have fallen, that it has become comparatively barren. The trees that remain standing have ceased growing and are rotting. This is absolutely typical of forests everywhere.
paper reveals the discovery that people living in neighborhoods where trees had been removed had significantly more cancers and respiratory disease than people living among trees. The implications of this important study are discussed in A Travesty of a Mockery of a Sham.
New research has determined that wildflowers in the UK are dying due to low levels of air pollution, which leads to some obvious inferences about trees and other vegetation, posted in Trashed. Our government released a draft for public review of the National Climate Change Assessment; my commentary on the Forests chapter can be found at The Withering of All Woods is Drawing Near.
And finally, Naomi Oreskes collaborated on an essay that speculates from the perspective of the future as to why scientists, in the face of overwhelming statistical corrolation, declined to make the link between violent, extreme, unprecedented weather, and climate change from fuel emissions. The parallels between that and the failure of foresters to make the direct link between ozone and tree death is explored at More Research is Needed...Not.