This year the Arctic has undergone some of its most astounding changes.
The retreat of Alaska's Columbia Glacier may halt by 2020 after climate change has melted 15 miles of the glacier, relative to its size in 1794.
Researchers have discovered that the Antarctic ice sheets grows not only from the top down, but also from the bottom up as water infiltrates the ice matrix and freezes solid.
Grasses are taking advantage of the warming Antarctic climate. Are weeds next?
A new study of ocean sediments indicates West Antarctica as well as Greenland must have contributed to oceans that were 15 to 20 feet higher than their current levels.
Measuring ocean salinity is a bout a lot more than salt; changes in salinity can help us understand how Earth's climate is changing.
The oceans are indeed swelling, and faster than in the recent past. But the whole picture of sea level rise is highly variable.
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