Image credit: livescience.com
The author poses what he calls the ‘major question’: why does CO2 have no significant effect on temperatures in the real world?
The major development in climate science in the last year or two is something almost no one talks about, says Alan Carlin – strong evidence that changes in atmospheric carbon dioxide levels have no significant effect on global temperatures in the real world over recent decades.
The studies involved conclude that the minor increases in global temperatures during this period can be entirely explained using natural factors.
The evidence for this conclusion appeared in studies done over a year ago, but neither side is saying much about them.
Skeptic researchers seem to be currently concentrating on the case for lower equilibrium climate sensitivity (ECS), arguing that it is lower than the UN Intergovernmental Panel on Climate Change (IPCC) has hypothesized.
I agree that the ECS is nowhere near as high as the IPCC claims, but believe that the emphasis needs to be on the larger issue of whether CO2 has a significant effect on temperatures in the real world.
The Major Question Is Why CO2 Has No Significant Effect
Now that the evidence shows that CO2 has no significant effect in the real world over recent decades, the major research question is why–not how small the ECS may be in the idealized world of climate researchers. Insignificant effects will still be insignificant regardless of who may be correct as to the ECS.
Perhaps the major question is why CO2 has no significant effect on temperatures in the real world, in which case CO2 and ECS are largely irrelevant.
The climate alarmists continue to put their heads in the sand and pretend that their oft-repeated catastrophic CO2 hypothesis is somehow correct, even though it has been disproved, and the world should continue to spend more than a trillion dollars each year trying to reduce human-caused CO2 emissions.
But if changes in CO2 levels have no significant effect on temperatures, their proposed reductions in human-caused emissions will not either.
Continued here.
via Tallbloke’s Talkshop
May 12, 2018 at 03:27AM
Iowa Climate Science Education 