From: Naomi Klein, “This Changes Everything, Capitalism vs. the Climate.” Simon & Schuster, NY, 2014:
"Remember Richard Branson, the billionaire, who offered a 25 million dollar Earth Prize? He received about 2500 entries. He picked the eleven most likely winners in 2011 at an energy conference in Calgary, Alberta. Four were machines that sucked carbon from the air; one related to changing livestock grazing to boost the soils’ carbon-sequestering potential. Three were from companies that use the biochar process to make charcoal to then add to soil to sequester carbon.
Branson did not award the prize because the ideas were not close enough to commercialization."
Contributed by Jim Long.