LiveScience: As ice melts in the Arctic it can expose the ancient carbon lurking in the once-hidden permafrost to the sun's rays. The result? Carbon dioxide is spewing into the atmosphere more quickly than previously thought, according to new research.
Studies have shown temperatures are rising in the Arctic. The warming has caused more ice-rich, permanently frozen soil (called permafrost) to thaw and melt, collapsing to create a gully or a landslide and exposing new layers of soil to the sun, according to...