UN's Ban visits Antarctica, urges emergency action

With prehistoric Antarctic ice sheets melting beneath his feet, UN Secretary General Ban Ki-moon called for urgent political action to tackle global warming.

The Antarctic Peninsula has warmed faster than anywhere else on Earth in the last 50 years, making the continent a fitting destination for Ban, who has made climate change a priority since he took office earlier this year.

"I need a political answer. This is an emergency and for emergency situations we need emergency action," he said during a visit to three scientific bases on the barren continent, where temperatures are their highest in about 1,800 years.