The term attached to the notion that the Earth 's temperature is increasing due to the greenhouse effect .
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Some critics of the scientific consensus on global warming have argued that these issues should not be linked and that reference to them constitutes an unjustified ad hominem attack.  Political scientist Roger Pielke, Jr. , responding to Mooney, has argued that science is inevitably intertwined with politics. 
The U. S. State Department insisted at COP-21 in Paris last December that calling it the Paris Agreement rather than the Paris Climate Treaty would help President Obama evade the constitutional requirement of Senate ratification. Obama Administration officials continue to insist that it is an executive agreement that only requires the President’s approval. Marlo Lewis, my CEI colleague, details why it is a treaty and not merely an executive agreement in this analysis , and Steven Groves of the Heritage Foundation makes a similar analysis here .
So, since the average return period is once every 50 years, we were overdue for two Cat4+ strikes in the same year over the entire 166 period of record. (Again, for rare events, the statistics aren’t very well behaved.)
Projections suggest changes in the frequency and intensity of some extreme weather events.  Confidence in projections varies over time.