Climate Change Quotes
Almost a century later dirty vegetable oils from fast food restaurants were used in Diesel truck and tractor engines very effectively and efficiently.
This was an amazingly prescient view of the future.
The major reason for not yet harvesting waste is the labor, caital, and energy costs of recycling relative to the value of the resource is too high. Technology improvements and greater shortages continuously change the equation in favor of harvesting more and more resources.
As global warming affects our entire planet, Plant pests and diseases travel North at a rate of 2 miles a year moving from the colder climates into the warmer ones where they now can thrive while they could not before the warming. That, in turn, changes the mix of trees and plants as well as distribution and range of many animals. The same thing happens in the Southern hemisphere only the warmer areas expand South rather than North.