El Nino tied to melting of Antarctica's Pine Island Glacier

Pine Island Glacier is one of the biggest routes for ice to flow from Antarctica into the sea. The floating ice shelf at the glacier's tip has been melting and thinning for the past four decades, causing the glacier to speed up and discharge more ice.

NASA tracks massive crack in Antarctic ice shelf

NASA is conducting aerial surveillance missions to monitor a massive crack that cuts across the floating ice shelf of Pine Island Glacier in Antarctica.

Ridge, not global warming, causing major glacier to melt

In a discovery likely to fan the flames of climate change debate, a team has concluded that the thinning ice on one of Antarctica's major glaciers is not caused by global warming.