When a Nobel prize winning physicist speaks out to say the science of global warming ignores a key variable and so is unreliable, you would expect there to be a lot of discussion in the media and on the news, but not in this case. There is no mention of it at all. What he highlights is the obvious factor that anyone would think was basic - the change in cloud cover. This one variable could completely wipe put the effect of CO2 and yet it is poorly understood. This article gives the details:
Nobel Winner Refutes Climate Change Narrative, Points Out Ignored Factor - CO2 Coalition
The issue at hand is, will albedo increase as the earth warms due to cloud cover. If you are able to understand and digest the information in this article, cloud cover is uncertain and yet studies lean in the direction that cloud cover will likely be strongly positive and that climate sensitivity is also strongly positive. Betting the farm against main stream science has a real risk of bringing on future dire conditions to live in for our future generations. We are already feeling the effects of global warming now.
ReplyDeletehttps://skepticalscience.com/clouds-negative-feedback-intermediate.htm
Although the cloud feedback is one of the largest remaining uncertainties in climate science, evidence is building that the net cloud feedback is likely positive, and unlikely to be strongly negative.
In short, while more research of the cloud-climate feedback is needed, the evidence is building against those who argue for a strongly negative cloud feedback. It\'s also important to remember that clouds are just one feedback among many, and there is a large amount of evidence that the net feedback is significantly positive, and climate sensitivity is not low.
Anyone who has sat in the sun and felt the warmth of it can testify that when a passing cloud blocks out the sun's rays the result is a drop in temperature. The cloud reflects the heat away from the surface. Where clouds can trap heat is at night when they reflect the outgoing radiation back down, which is a good thing.
ReplyDelete