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Plant more trees: Young forests use carbon most effectively

For forests, it really does help to be young. British scientists who have identified the vital factor that shows what makes a forest a good carbon sink say young forests use carbon best a...

1,700+ species now at risk from human action, researchers report

There is only one Earth, but human growth is ensuring that it carries steadily more passengers. And that leaves less and less room for humanity's companions on board the planet.

解决食品安全与气候问题的双赢路径