Guardian: It was a strange moment that linked the fates of some of the world’s poorest farmers to the interests of an increasingly powerful set of western lobby groups. Last week, UN climate researchers admitted they had grossly overestimated the chances that the Himalayas’ glaciers would soon disappear as a result of global warming. For millions of Indian and Chinese families who till land washed by rivers that pour from the Himalayas, this was good news. The prospects of major droughts, loss …