Live Science: The discovery of two large lakes hidden beneath Greenland's ice suggests that climate change now cuts all the way to the bottom of the ice sheet, according to two new studies. The lakes, on opposite coasts, were only spotted because meltwater from Greenland's surface triggered gushing floods in the fall of 2011. Billions of gallons of water had flushed some 30 miles (50 kilometers) to the sea, leaving behind sunken craters in the surface of the ice above the lakes. Researchers found the fractured...