Reuters: A slowdown of deforestation from the Amazon to the Congo basin could generate billions of dollars every year for developing nations as part of a U.N. scheme to fight climate change, a study showed on Monday. Burning of forests by farmers clearing land accounts for 20 percent of world greenhouse gas emissions. A 190-nation U.N. climate conference agreed in Bali, Indonesia, in December to work on ways to reward countries for slowing deforestation. "Even with quite …