Find out which Antarctic glacier is beyond repair, and why

New Scientist reports that new scientific modelling shows that a major Antarctic glacier is "past its tipping point."

The article says that "In 2004, satellite observations showed that it had started to thin, and that ice was flowing into the Amundsen Sea 25 per cent faster than it had 30 years before."

The outlook was grim then, but more recent research -- the first to model the ice sheet in three dimensions -- probably "is irreversibly on track to lose 50 per cent of its ice in as little as 100 years, significantly raising global sea levels."

By "significantly", they mean by as much as 24 centimetres.

See the full article for more details.