Steven Koonin, an advisor to Obama on climate change policy, has issued a sensible position on the issue.
His soon to be published book “Unsettled: What Climate Science Tells Us, What It Doesn’t, and Why It Matters” notes that global average temperature has risen by about 1C degree since 1900. More important, it decries any notion that we are in a “climate emergency”. He expects another 1C increase in this century.
“Humans exert a growing, but physically small, warming influence on the climate. The results from many different climate models disagree with, or even contradict, each other and many kinds of observations,” he wrote. “In short, the science is insufficient to make useful predictions about how the climate will change over the coming decades, much less what effect our actions will have on it.”
“Among the most significant revelations were that human activity had no significant influence on hurricanes over the past hundred years; Greenland’s ice sheet has been shrinking at the same rate for the past 80 years; and parts of the world that have been destroyed by wildfires have declined by greater than 25% since 2003, with 2020 being one of the lowest years on record.”
This is congruent with a more extensive set of graphs produced by Willis Eschenbach in Watts Up with That.
Among the charts that interest me most in Eschenbach’s article was the one on sea level rise. It shows that between 1990 and now, sea levels have risen about 80 mm in 25 years. Let us extrapolate this to 320 mm in 100 years, without further justification. This is about 12 and one half inches in a century, which is far less than the rise expected by the physicist Lawrence Krauss, who wrote The Physics of Climate Change . He predicted a rise on sea level of about a meter (39 inches) by mid century.
Krauss situated the problem of global warming principally in rising sea levels, caused by melting glaciers and the expansion of water itself under the influence of greater heat. Krauss believes that places such as the Mekong Delta will be flooded with sea water at high tide, and rendered sterile, by 2100. This would have a disastrous effect on food production in a nation of 90 million people. Krauss is an alarmist but not a catastrophist, and his arguments are persuasive as long as you don’t look at contradictory data.
I have come to the views expressed by Koonin: that humans have had a small warming effect on the climate. and even if we stopped CO2 production right now, we would still be increasing global temperatures by a degree or two for another century at least. But in terms of the policies the elite wankers want us to adopt, I side with General Buck Turgidson in Stanley Kubrick’s Dr Strangelove. I have smelt it for a long time.