You've probably seen the images of the lake at the north pole by now, or at least what's been widely represented as our melted northern pole. Of course, things are often somewhat different than media portrayals would have us believe, and this is but the latest example. As the researcher who floated the buoy in the "lake", not only is it not a sign of "man-made global warming", it's not at the pole; it's 300 miles south. Nor is it a "lake" - it was a melt pond, which he notes is a faily common occurrence during the arctic summer. Worse yet for the professional alarmists: the melt pond has refrozen.
