Environment & Energy
Related: About this forumClimate Denialists Retreat To Last Line Of Defense - Clouds Will Save Us - NYT
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But for more than a decade, Dr. Lindzen has said that when surface temperature increases, the columns of moist air rising in the tropics will rain out more of their moisture, leaving less available to be thrown off as ice, which forms the thin, high clouds known as cirrus. Just like greenhouse gases, these cirrus clouds act to reduce the cooling of the earth, and a decrease of them would counteract the increase of greenhouse gases. Dr. Lindzen calls his mechanism the iris effect, after the iris of the eye, which opens at night to let in more light. In this case, the earths iris of high clouds would be opening to let more heat escape.
When Dr. Lindzen first published this theory, in 2001, he said it was supported by satellite records over the Pacific Ocean. But other researchers quickly published work saying that the methods he had used to analyze the data were flawed and that his theory made assumptions that were inconsistent with known facts. Using what they considered more realistic assumptions, they said they could not verify his claims.
Today, most mainstream researchers consider Dr. Lindzens theory discredited. He does not agree, but he has had difficulty establishing his case in the scientific literature. Dr. Lindzen published a paper in 2009 offering more support for his case that the earths sensitivity to greenhouse gases is low, but once again scientists identified errors, including a failure to account for known inaccuracies in satellite measurements.
Dr. Lindzen acknowledged that the 2009 paper contained some stupid mistakes in his handling of the satellite data. It was just embarrassing, he said in an interview. The technical details of satellite measurements are really sort of grotesque. Last year, he tried offering more evidence for his case, but after reviewers for a prestigious American journal criticized the paper, Dr. Lindzen published it in a little-known Korean journal.
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http://www.nytimes.com/2012/05/01/science/earth/clouds-effect-on-climate-change-is-last-bastion-for-dissenters.html?pagewanted=3&_r=1
phantom power
(25,966 posts)pscot
(21,024 posts)From up and down, and still somehow
It's cloud illusions i recall.
I really don't know clouds at all.
With an apology to Joni Mitchell