Captive-bred animals are too trusting of humans and some will starve to death after release because they did not know how to hunt and fend for themselves properly, research finds.
Climate change, say the pessimists, will destroy our world. But in an exclusive interview, acclaimed author Philip Pullman champions a new brand of environmentalism that offers us all hope.
The Pulse tracks what's hot in global coverage of green issues, displays the number of stories published in each area and ranks by percentage weekly change.