Tuesday, December 22, 2015

Ice age coming - 2015 or 1974?

Like many people of my generation, I first became involved with environmental issues when I was in high school. Back then, we were all taught to fear imminent cooling of the planet.

Yesterday, NASA announced that burning fossil fuels cools the planet. "But, rather than being good news, NASA has concluded the lack of taking these factors into account means existing climate change models have underestimated at the future impact on global temperatures will be."


Gavin claims that because the study shows a net cooling effect in the northern hemisphere, climate sensitivity to CO2 is actually greater than previously estimated.

"NASA researchers at GISS accomplished a first ever feat by calculating the temperature impact of each of these variables—greenhouse gases, natural and manmade aerosols, ozone concentrations, and land use changes—based on historical observations from 1850 to 2005 using a massive ensemble of computer simulations. 
The spokesman said: "Analysis of the results showed that these climate drivers do not necessarily behave like carbon dioxide, which is uniformly spread throughout the globe and produces a consistent temperature response; rather, each climate driver has a particular set of conditions that affects the temperature response of Earth.
"Because earlier studies do not account for what amounts to a net cooling effect for parts of the northern hemisphere, predictions for TCR and ECS have been lower than they should be. 
"This means that Earth's climate sensitivity to carbon dioxide—or atmospheric carbon dioxide’s capacity to affect temperature change—has been underestimated, according to the study."
The Intergovernmental Panel on Climate Change, which draws its TCR estimate from earlier research, places the future estimate rise at 1.8°F (1.0°C).
But the new NASA study dovetails with a GISS study published last year that puts the TCR value at 3.0°F (1.7° C).
Mr Schmidt said: “If you’ve got a systematic underestimate of what the greenhouse gas-driven change would be, then you’re systematically underestimating what’s going to happen in the future when greenhouse gases are by far the dominant climate driver.” 
Tony Heller does a nice job collecting old media accounts of the same ice age scare tactic here. The rest of this post is quoted from his web page.
NASA’s top climatologists reported the same thing in 1971, and made it clear that the effects of CO2 are not dangerous, and never will be dangerous.
Obama’s science adviser John Holdren reported the same thing in 1971, and predicted a new ice age in a joint paper with Paul Ehrlich.
Ehrlich also reported that the US would have food and water rationing by 1980.
NOAA shot this theory down by the year 1977, so it is pretty remarkable that Gavin is trying to resurrect it in 2015.
This endless cycle of mindless climate insanity and lies is what President Obama calls “settled science” – and wants to silence anyone who disagrees.

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