Descartes wrote:
World War II was essentially what got us out of the Great Depression, so perhaps we need another world war to get us out of our current economic crisis.

Actually, the whole "environmental crisis" as marketed was supposed to be the answer for that issue.
At the Brenton Woods Conference, a bunch of elitists got together and debated how to keep up economic prosperity. They knew that X percent of a nations GDP has to be destroyed/consumed so that production remains a necessity, employment stays up, and money keeps flowing. However, while war does this very effectively, the risk of unintended consequences is unacceptable.
As such, they chose to make the "environment" the new boogie man to be fought. You can see the evidence of this in how virtually all environmental policies only impact the consumer, but never the military, large industry (unless the cost can easily pass on to the consumer), etc.
If production kept pace with what people really needed and little more, the whole system would collapse.