Flare Up Like A Forest Fire
Watching the Amazon burn, it is hard not to feel despair. But we have to remind ourselves that social transformations can take off as rapidly as a forest fire. The climate and ecosystems all have tipping points. For instance, it is estimated that 20 percent tree loss in the Amazon will change rainfall conditions, and push the forest into irreversible decline. And as temperatures rise, the thawing permafrost will enter a positive feedback loop in which melting releases the greenhouse gas methane, heating the atmosphere and accelerating the disappearance of the permafrost.