Daniel B. Botkin “dismantles” the IPCC 2014 report on climate change in testimony before the House Committee on Science, Space and Technology. Well worth reading. A point he makes up front: “I have … been dismayed and disappointed in recent years that this subject has been converted into a political and ideological debate.”  

A brief bio: “Daniel B. Botkin, a world-renowned ecologist, is Professor (Emeritus), Department of Ecology, Evolution and Marine Biology, UC Santa Barbara, and President of The Center for The Study of The Environment, which provides independent, science-based analyses of complex environmental issues. The New York Times said his book, ‘Discordant Harmonies: A New Ecology for the 21st Century* is considered by many ecologists to be the classic text of the [environmental] movement.'”