50-50 Chance of Global Warming Milestone
As likely as not, the Earth’s average annual temperature will soon have its first spike above the 1.5 degree Celsius cap set for post-Industrial Revolution warming by the 2015 Paris Agreement, according to a new five-year climate outlook from the World Meteorological Organization. Greenhouse gas emissions have continued to increase since the pact was signed, and the WMO found there is now a 50-50 chance that the world will temporarily cross the 1.5-degree threshold sometime in the next five years.
The WMO projection is the latest in a grim drumbeat of climate science reports showing that the world is still failing to hold warming to a level that could avoid even more catastrophic climate impacts than the increasing heat waves, droughts, wildfires and tropical storms that the current level of warming, about 1.1 degrees Celsius above the pre-industrial level, has spawned.
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