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Mars: Various spacecraft have observed Mars from orbit from 1971 to the present, many able to provide a long baseline of climate observations. In 2001 Malin et al. (2001) found that images of Mars' south polar cap taken one Martian year apart showed small retreats (of about 1-3 meters) in the cover of frozen carbon dioxide. This frozen CO2 sublimes directly from ice to gas in Mars' thin atmosphere. Observations over the next few Martian years' (one Martian year = 1.88 Earth years) showed continuing retreat, resulting in expanding pits in the residual polar cap (Benson and James, 2005; Thomas et al., 2005; James et al., 2007). This retreat has now been observed over four Martian years.
Several global warming believers have been quick to state that this is a regional climate change. However, Fenton et al. (2006) and Fenton et al. (2007) have identified trends in changes in the reflectivity of the surface dust on Mars from 1976 to 2000. From observed albedo changes they have used models to estimate a global annual air temperature increase of 0.65° C. The direct cause of this predicted temperature change is a change in the distribution of darker dust on Mars' surface, and the resulting warming could be a factor in the retreat of Mars' south polar ice. One proposed root cause of this climate change could be slight shifts in Mars' axial tilt or orbital eccentricity: such changes have also been proposed as key drivers in changing Earth's climate between glacial and interglacial conditions (i.e. starting and ending ice ages). These shifts involve very long timescales on Mars as well as Earth, making this an inadequate explanation for the changes observed currently. Internal variations in Mars' climate, as opposed to influences from solar output changes, are likely at work, but this issue is unresolved.
https://x.com/amuse/status/1921881216283787423
" https://unexpectedturns.substack.com/p/updates-may-2025 "
Dr. Richard Lindzen, a world-renowned atmospheric physicist and MIT professor emeritus, is sounding the alarm about the globalist push to enforce so-called “Net Zero” policies.
Lindzen is warning the public about the global campaign to comply with “Net Zero” by 2050.
In his view, the plan is not only astronomically expensive but virtually useless. ...
“If you reach Net Zero by 2050, if you do it worldwide, you avoid about a third of a degree of warming,” says Lindzen in a new interview.
“If it’s just Europe and the Anglosphere, it’s closer to a tenth of a degree.
“So you have avoided a tenth of a degree of warming at a cost of probably tens of trillions of dollars.
“Doesn’t seem like a bargain to me,” he adds.
“How far will the population go in saying, we will sacrifice ourselves for a symbolic gesture?” ...
“When somebody says the change of a tenth of a degree, or when [UN Secretary-General António] Guterres says, if it changes a half-degree, we’re finished as a species, this is an existential threat – people have to ask, what the hell are they talking about?”
He dismisses climate doomsday predictions as political theatrics.
“2030 will pass. 2050 will pass,” he states.
“Fifty years will pass.
“There will be no climate catastrophe.”
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( Previous Globull Warming threads were merged into this one on 7 Oct 2025. See https://patrick.net/post/1210872/2012-04-02-patrick-net-suggestions?start=624#comment-2213087 )