The mystery of the expansion of sea ice around Antarctica, at the same time as global warming is melting swaths of Arctic sea ice, has been solved using data from US military satellites.
Two decades of measurements show that changing wind patterns around Antarctica have caused a small increase in sea ice, the result of cold winds off the continent blowing ice away from the coastline.
"Until now these changes in ice drift were only speculated upon using computer models," said Paul Holland at the British Antarctic Survey. "Our study of direct satellite observations shows the complexity of climate change.





Fish, birds, water voles and newts could all face damaging drought impacts – says Environment Agency.
Housing Minister Grant Shapps has unveiled the Government's definition of zero carbon homes that will apply to all properties built from 2016.
David Cameron's welcome pledge to step up cuts in carbon emissions boosts his government's green credentials, but its actions at home and abroad tell a different story. As David Cameron finally aims to put some muscle behind his supposed green credentials, by backing more ambitious domestic cuts in CO2 over the coming years, it's worth noting that there's still a fair amount of two-faced behaviour from his government.