In the context of president Trump's statement that the Paris accords if fully implemented would have "a tiny, tiny impact," BBC News points out that it refers to a Massachusetts Insititute of Technology study by scientists in 2014. That study did not include all the commitments made in the Paris talks, and does not carry the improvements forward beyond 2030 assuming that things level out with no improvements. It then came up with the figure of two tenths of one degree Celsius as the improvement by the year 2100. When the MIT scientists corrected these assumptions after the Paris accords in 2015, they stated that 1 degree of Celsius improvement would be achieved with the Paris accords and all countries working together on the planet. Scientists contacted by BBC News, including Prof. Hohne who works with Climate Tracker that tracks greenhouse gas emissions, say this 1 degree Celsius reduction is the difference between dangerous levels of global warming and tolerable levels. ...
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