congressional testimony

A probabilistic quantification of the anthropogenic component of twentieth century global warming

Environment gregladen | November 21, 2012

A probabilistic quantification of the anthropogenic component of twentieth century global warming is a paper just out that examines an important conflict in the conversation about climate change and global warming. Before getting to the details, have a look at this graph from the paper: This is temperature increasing on the earth over a century or so. Notice that there is what looks like a warming around 1940 on top of an otherwise mostly warming trend, followed by a bunch more warming. The Fourth Assessment Report of the IPCC, in 2007, referring to data that ran up to 2005 inclusively, said…