Could it be that changes in the jet stream or the migration of drought zones are triggering shifts we do not yet understand?

 Oreskes and her colleagues wrote in a 2012 paper, “core scientific values of objectivity, rationality and dispassion” have led to conservative projections about the impact of climate change, even in IPCC assessments.

The short answer is that scientists are divided about whether a more dangerous phase of non-linear change has begun. 

 FT 28 July 2021             

https://www.ft.com/content/3125bee9-73ae-4abf-ac58-615fe8e43396                   

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