Iceberg B-31 separating from the calving front of Antarctica’s Pine Island Glacier on November 13th, 2013 This iceberg is 700 square kilometers, 50% larger than previous icebergs in this area. Scientists are studying Pine Island Glacier closely because there is evidence that warmer seawater below the shelf will cause the glacier to thin and move more rapidly into the sea.
The paper found that by 2006, nations had already spent a quarter of that amount, or 234 gigatons. Meaning, the planet’s carbon budget would be exhausted by 2024—11 years from now— if emissions levels stayed the same, or even earlier if they continue their upward trend.
During the exceptionally warm springs of 2010 and 2012, plants bloomed earlier in the eastern U.S. than they have since the American writer and naturalist Henry David Thoreau started keeping records near Walden Pond in 1852.