William Happer, Emeritus Professor of Physics, Steven Koonin, New York University, Center for Urban Science and Progress, Under Secretary for Science at U.S. Depart. of Energy in President Obama's administration, Richard Lindzen Emeritus Professor, MIT Department of Earth, Atmospheric, and Planetary Sciences: This is a tutorial on man-made global warming, man-made climate change for the U.S. District Court, Northern District of California, San Francisco Division. 1) The climate is always changing. 2) Human influences on the climate are a small (1%) perturbation to natural energy flows. 3) It is not possible to tell how much of the modest recent warming can be ascribed to human influences. 4) There have been no detrimental changes observed in the most salient climate variables and today's projections of future changes are highly uncertain.
Richard Lindzen is an atmospheric physicist, Emeritus Professor at MIT. This short video explains the man-made climate change views of alarmists, skeptics, politicians, extreme environmental groups and the media.
Richard Lindzen is an atmospheric physicist, Emeritus Professor at MIT. From 1983 until his retirement in 2013 he was Alfred P. Sloan Professor of Meteorology at MIT: : "Doubling CO2 involves a 2% perturbation to this budget. So do minor changes in clouds and other features, and such changes are common. In this complex multifactor system, what is the likelihood of the climate (which, itself, consists in many variables and not just globally averaged temperature anomaly) is controlled by this 2% perturbation in a single variable? Believing this is pretty close to believing in magic."
Few challenges facing the world are more urgent than combating climate change. (President Obama) USofA21.Apr.2017
Barack Obama, President of the United States: "Few challenges facing America and the world are more urgent than combating climate change. The science is beyond dispute and the facts are clear." "With all due respect Mr. President, that is not true." We, the undersigned scientists, maintain that the case for alarm regarding climate change is grossly overstated.