Antarctic

Research allowed team to map hotspots across Antarctic, finding penguin colonies to be proxy for biodiversity

Russia and China are worried about compliance issues and fishing rights

Two-fifths of that ice loss occurred in last five years

Loss of so much ice would shrink the shelf by about 10 per cent, leaving it with the smallest area ever recorded

The findings have implications for conservation

Scientists monitoring conditions at the base say the average temperature here has increased by 2.5 degrees Celsius

David Wood, 62, was winched out of the deep crack by specialist officers from a nearby scientific research station