The huge West Antarctic ice sheet is undergoing a glacially slow but unstoppable collapse, new studies show, and scientists say that means a bigger rise in sea level than previously thought.

East Antarctica has set a global record for soul-crushing cold, according to newly analysed data.

NEW satellite observations show that sea ice in the Arctic is melting faster while air temperatures in the region are rising sharply, scientists say.

New satellite observations show that sea ice in the Arctic is melting faster while air temperatures in the region are rising sharply, scientists say.