This series consists of links and excerpts from my last 12 months of posts touching on the science and politics of climate change.

Climate Change Consensus: Update from the 97% Folks  July 3, 2017

What is the right question? Something along the lines of what the Pew survey asked: assuming climate change is happening, are humans the primary cause of global warming? The Verheggen et al paper comes closest to having both the right question and the appropriate respondents. Plus, they had the largest sample size - more than the other three studies combined. And they found a roughly 90% endorsement of anthropogenic global warming.

Climate Change Consensus and Lessons from Social Psychology  July 1, 2017

It also makes a world of difference when the scientific consensus on climate change is represented as nearly unanimous (e.g., 97%) rather than merely a large majority (e.g., 90%). The former intimidates and discourages potential dissent; the latter, not so much

Climate Change Consensus: Digging Deeper  June 25, 2017

The Bray and von Storch 5th International Survey of Climate Scientists consists of over a hundred statements related to climate change and its effects. For each statement, respondents indicated their level of agreement or opinion via a seven-point scale.  Around a third of the 651 respondents were involved (as author, reviewer, etc.) with the United Nations Intergovernmental Panel on Climate Change Fifth Assessment Report (2014 IPCC AR5).

Climate Change: Degrees of Certainty within the Consensus  June 24, 2017

Of the scientists convinced or confident that climate change is occurring, 48% were convinced that most of the recent or near future climate change is the result of anthropogenic causes; 26% were very confident of this; and 14% were modestly confident.

Climate Change: Exploring the Consensus  June 22, 2017

...only those authors who self-rated their papers as having an opinion on anthropogenic global warming (AGW) were asked if they personally endorsed AGW themselves.  These authors represented 62.7% of the whole sample - 746 out of 1189 respondents. The authors who self-rated their papers as having no position on AGW were not asked about their opinion on global warming. They were also climate scientists...