...to deforestation leading to flash floods, soil erosion, then to famine and, inexorably, to war. The narration points out the ravages of flailing empires inflict upon surrounding regions. Today, add a binge on cheap energy and the fact that it is for the first time ever, a global economy, and it's not difficult to see how this movie will end...oops and then on top of that, there's rapid climate change.
This begs the question, if the trees lived long enough to measure a 50 year drought or maybe more, then why are scientists blaming widespread tree deaths on much shorter droughts? Hmmmm?
Settle in with a snack and enjoy the movie anyway!