This picture captures a lake in Greenland that shouldn't be there. In fact, the lake is so new that we haven't even come up with a name for it yet. Scientists may not want to, because they're working on ways to help it revert back to its natural state of ice. This image was taken right at the top of the Greenland ice sheet, and if you'd taken it in the 1970s, it would all have been ice, all year round.
You can add this one to the list of evidence that climate change is very real, and that it clearly poses a threat. Records of the rate and extent of ice melting in this area have been kept ever since the early 70s, and they show a clear and consistent pattern. The 'melting season,' which as the name suggests is the period each year where the ice slowly melts before re-freezing in winter, is now seventy days longer than it used to be. That's more than two entire months.