Our approaches to environmental crises, economic crises, and military crises remind us of Mickey Mouse's in "The Sorcerer's Apprentice":for every berserk broomstick that he hacked in half, two more took its place, implacably carrying buckets of water that, one by one, created a universal deluge. Similarly, for every polluting source that we turn off (or "mitigate," since we can't seem to really turn off anything), another two pop up in its place. For example, at the very moment that we seem to have become serious about reducing our use of petroleum, here comes coal from the ravaged mountaintops of West Virginia and tar sands from Canada, the dirtiest and most destructive energy sources of them all. These rounds of mitigation and evasion are what pass for problem-solving.
It doesn't work because we have replaced thoughtfulness and our appreciation of cultural and natural beauty with a heart that only knows growth, is committed to getting more (profit, etc), and is comfortable wielding violence because it once seemed to work. This is the Barbaric Heart.