I am a great believer in trees and the commons they form; it seems to me that going beyond preserving them to extend their coverage across the world could help deal with many of the most pressing problems facing mankind: climate change, desertification, water, etc.
It has always struck me as barmy that the contribution that trees make to the planet has not been better quantified; now it
has:
The global economy is losing more money from the disappearance of forests than through the current banking crisis, according to an EU-commissioned study.
It puts the annual cost of forest loss at between $2 trillion and $5 trillion.