Maldives leader Mohamed Nasheed, called the “world’s most environmentally outspoken president” because of his calls for drastically cutting greenhouse gas emissions, was forced to resign—at gunpoint, he claimed. He had used stunts such as an underwater cabinet meeting to highlight his island nation’s vulnerability to sea-level rise.

His resignation followed weeks of protests and was apparently motivated by internal politics unrelated to his environmental views.

Global warming could be behind the Arctic blast that recently hit Europe, killing more than 200. The unusually small ice cover over the Kara and Barents Seas has changed wind patterns, pushing frigid air into Europe.

Meanwhile, most of the U.S. has been enjoying an especially mild winter—although Alaska has had one of the coldest and snowiest on record, and the