On September 4, 2012 a NASA satellite captured an image of lava flowing down Anak Krakatau. The fresh lava has extended the shoreline of the volcanic island.
Destruction of coastal habitats may release as much as 1 billion tons of carbon into the atmosphere each year, 10 times higher than previously reported, according to a new Duke led study.
Sea ice in the Arctic in 2012 already appeared to be heading for a new record low. Then in early August, a long-lasting and powerful storm pushed through the Arctic.
A new image shows the spectacular globular star cluster Messier 4, a ball of tens of thousands of ancient stars that has strange and unexpected properties.
If Antarctica's ice sheets continue to thin as the climate warms, stores of the potent greenhouse gas could be released to the atmosphere, researchers say.