Global Warming Less Likely to Be Catastrophic, Says New Nature Study

The following excerpt is from an article that originally appeared on Hit and Run

That would mean more time to address whatever problems man-made climate change may cause

Alex Parfenov/DreamstimeProbably the most vexing problem in climate change science is determining how hot the planet would become if the amount of carbon dioxide in the atmosphere doubles from it pre-industrial level of 280 parts per million. Known as equilibrium climate sensitivity (ECS), the Intergovernment Panel on Climate Change’s Fifth Assessment Report put the likely range of ECS as being between 1.5 and 4.5 degrees Celsius.

The current level of carbon dioxide in the atmosphere is around 403 parts per million. Carbon dioxide in the atmosphere is now increasing annually at about 3 parts per million. If that rate of increase keeps up, the amount of carbon dioxide in the atmosphere will double by the end of the century.

As bad as an increase of 4.5 degrees Celsius

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