Guardian: Global warming will wreck attempts to save the Amazon rainforest, according to a devastating new study which predicts that one-third of its trees will be killed by even modest temperature rises. The research, by some of Britain’s leading experts on climate change, shows that even severe cuts in deforestation and carbon emissions will fail to save the jungle, which has become a powerful symbol of human impact on the planet. Up to 85% of the forest could be lost if spiralling …