Beautiful But Devastating
These are superglacial lakes -- pools of meltwater that from atop glaciers. While beautiful, they are harbingers of climate change's devastating effects. The water in these mini lakes -- which form only when the temperature is above freezing -- holds heat from the sun, causing more ice to melt. Eventually, the meltwater drips through the ice sheet and lubricates the bedrock below, accelerating the glacier's slide into the ocean. This process has already started in the Arctic, which is where these lakes were photographed. Scientists have previously thought that certain, super-frigid parts of Antarctica were resistant to climate change, but the discovery of superglacial lakes there changes everything. It now looks like Antarctica could plunge into a warming pattern similar to what we have seen in the Arctic. Not good -- especially when you consider there's far more ice down south. (Photo: NASA)










