James Taylor, Senior Fellow at The Heartland Institute, wrote a response to the National Climate Assessment and Development Advisory Committee’s (NCADAC) 2013 Draft National Climate Assessment, which tackles many important climate-related questions but consistently reaches overly pessimistic conclusions.
The Draft National Climate Assessment presents many asserted climatic change impacts – some real, some contradicted by the weight of scientific evidence – and paints a picture of a nation and world severely and negatively affected by human-induced climate change. By contrast, the weight of scientific evidence suggests only modest recent climate change by historical standards.
Importantly, the weight of scientific evidence suggests the Draft Assessment overstates asserted recent harms and overlooks the fact that recent climatic changes are creating net benefits to plants, animals, and human welfare rather than net harm.
The full commentary cites more than 400 pages of scientific evidence, and can be downloaded here.