Ice-free summers inevitable even with sharp emissions cuts and likely to result in more extreme heatwaves and floods

The Greenland and Antarctic ice sheets are now losing more than three times as much ice a year as they were 30 years ago

Huge scale of human-driven loss of species demands urgent action, say world's leading scientists

Prime Minister Justin Trudeau said the ban could eliminate 1.3 million tons of plastic waste over the next decade.

New research comes months after Australian government lobbied to keep coral reef off world heritage "in danger" list.