Guy Mcpherson checks out as an honest purveyor of information The Charney Report 1979 - page viii"The conclusions of this brief but intense investigation may be comforting to scientists but disturbing to policymakers. If carbon dioxide continues to increase, the study group finds no reason to doubt that climate changes will result and no reason to believe that these changes will be negligible. The conclusions of prior studies have been generally reaffirmed. However, the global climate system, may be expected to slow the course of observable climate change. A wait-and-see policy may mean waiting until it is too late."Page 6"Considering the uncertainties, it would appear that a doubling of atmospheric carbon dioxide will occur by 2030 if the use of fossil fuels continues to grow at a ratio of about 4 percent per year, as was the case until a few years ago. ....at today's levels shifts the time for doubling well into the twenty-second century."?My note: Doubling as read it means 580ppm. The pre-industrial level understood in 1979 to be 290ppm & not 280ppm as understood today. They were expecting about a 2C to 3.5C eventual Heat balance from doubling about 2030. Page 8. Ignoring feedbacks ...."For such a case, doubled CO2 produces a temperature increase of 1C."1C was expected by 2030. Water vapor increases by about a factor of 2. "For a doubled CO2, the temperature increase would be 2C. Page 1(We) ...."have assumed a rate of CO2 increase that would lead to a doubling of airborne concentrations by some time in the first half of the twenty-first century."When it is assumed that the CO2 content of the atmosphere is doubled, and statistical thermal equilibrium is achieved, the more realistic of the modeling efforts predict a global surface warming of between 2C & 3.5C, with greater increases at high latitudes.Page 2"The warming will be accompanied by shifts in the geographical distribution of various climatic elements such as temperature, rainfall, evaporation and soil moisture. The evidence is that variations in the anomalies with latitude, longitude, and season well be at least as great as the globally and season will be at least as great as the globally averaged changes themselves, and it would be misleading to predict regional climatic changes on the basis of the global or zonal averages alone."....It appears that the warming will eventually occur, and the associated regional climatic changes so important p.Vii"For more than a century, we have been aware that changes in the composition of the atmosphere could affect its ability ot trap the sun's energy for our benefit. We now have incontrovertible evidence that the atmosphere is indeed changing and that we ourselves contribute to that change. Atmospheric concentrations of carbon dioxide are steadily increasing, and these changes are linked with man's use of fossil fuels and exploitation of the land. Since carbon dioxide plays a significant role in the heat budget of the atmosphere, it is reasonable to suppose that continued increases would affect climate. ....consensus has been that increasing carbon dioxide will lead to a warmer earth with a different distribution of climate regimes."to the assessment of socioeconomic consequences may well be significant....Page 17"If the CO2 concentration of the atmosphere is indeed doubled and remains so long enough for the atmosphere and the intermediate layers of the ocean to attain approximate thermal equilibrium, our best estimate is that changes in global temperature of the order of 3C will occur and that the will be accompanied by significant changes in regional climatic patterns.