No one thought that Lamar "my career has been funded by fossil fuels" Smith was going to put on an unbiased hearing on climate science. After all, the minority Democrats on Smith's House Committee on Science, Space, & Technology published a report this month, Much Ado About Nothing, which details Smith's "crusade to attempt to undermine and invalidate" Tom Karl's pause-buster study. (Yet Smith still can't get NOAA's name right)!
Although little was said about Karl, Wednesday's House Science Committee hearing with Drs. Michael Mann, John Christy, Judith Curry and Roger Pielke Jr. was a quite a circus. Which is exactly why someone who's been through Smith's nonsense, Dr. David Titley, wrote for the Washington Post that scientists should boycott these biased hearings.
That would be nice, if that meant that Smith would stop holding them. But since he shows no sign of slowing his inquisition, someone needs to show up to set the record straight and push back on all the denial packed into the hearing like so many clowns in a tiny car.
And that's exactly what Dr. Mann did, successfully walking the tight-rope between correcting other witnesses and coming off as a jerk. Most notably and most clearly getting under Smith's skin, Mann cited a recent Science Magazine article describing Smith's comments at the Heartland conference. Mann read the killer quote about how Smith "acknowledged that the committee is now a tool to advance his political agenda rather than a forum to examine important issues facing the U.S. research community."
In response, Lamar Smith, the esteemed media critic who cited the Daily Mail's bogus Bates story, who has written for Breitbart and said that people should get their news directly from Trump, claimed that Science Magazine is "not known as an objective magazine." As Emily Atkin of the New Republic aptly put it, "The fact that the chairman of the House Science committee doesn't consider that source 'objective' is ACTUALLY MIND BLOWING."
Smith, with pie on his face, also demonstrated his media savvy by citing the never-correct editorial page of the Wall Street Journal on heat records. This opinion is about as solid as cotton candy and has been contradicted by the paper's own reporting.
GOP to NASA: Forget Climate Science, Focus on Space https://t.co/to11fy7ccS @OneWorld_News @YaleClimateComm— EcoWatch (@EcoWatch)1487628607.0
Speaking of dumb Wall Street Journal opinions, Mann also did a nice job of calling out Pielke's hypocrisy for whining in the Journal about being harassed, after sending threatening letters to Mann and Kevin Trenberth's bosses when they criticized his awful FiveThirtyEight piece that needed correction.
Also needing correction was John Christy, who trotted out his error-laden graph of models and observations. Again, Mann highlighted the foolishness of his fellow witnesses by pointing out how others have corrected Christy many times on the satellite record vs. the thermometer record. And more importantly, he cited the recent research that totally debunks Christy's false contention that models overestimate warming.
And then there's Judith Curry who, true to form, was there to talk about uncertainty (inappropriately). Again Mann was prepared, pointing out that uncertainty is actually a reason to take stronger action sooner. Uncertainty cuts both ways: while Curry and the GOP would have you believe maybe warming won't be so bad, it could actually be much worse than we fear.
Curry also bristled at being referred to as a "climate science denier" in Mann's written testimony. That's silly: She's teamed up with the Kochs, questioned the validity of the endangerment finding and said in her opening statement that it's time to "make the debate about climate change great again." So it is safe to say that "Judith Curry is absolutely a climate denier."
And she proved it in the hearing, denying the science and claiming we don't know how much is human versus natural. In 2014, NASA's Gavin Schmidt laid out the case for Curry that our best estimate is that humans are causing 110 percent of warming. (It's more than 100 percent because natural forces and particulate pollution cause cooling, which CO2 is overcoming to cause warming).
Other odds and ends that made an appearance include the 1998 documents showing Big Oil's plan to inject uncertainty into the climate debate, the long-debunked 70s cooling myth and Smith's tired denial of the consensus.
So like any good circus, there were plenty of clowns, people lion, tired grr-causing myths and bear-ly believable statements.
Here's the full hearing:
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Where Does the Deficiency Begin?<p>Nobody knows exactly how much vitamin D a person actually needs. The question of when a deficiency starts is correspondingly controversial. However, vitamin D is becoming increasingly popular.Not only is the pseudo-scientific literature on the "sun vitamin" experiencing an upswing, but the number of published studies has also increased enormously in recent years. For example, in 2019 <a href="https://academic.oup.com/edrv/article/40/4/1109/5126915" target="_blank">a study found that</a> Vitamin D is responsible for keeping the skeleton functional and is associated with cardiovascular diseases, type 2 diabetes and various types of cancer. <br></p>
An All-Rounder<p>Vitamin D levels in the body rise and fall according to sun exposure. If sufficient UV rays reach the skin, the body is able to produce the vitamin itself. However, the human body only derives an estimated 10 to 20 percent of its daily requirement from food.</p><p>The vitamin D that we synthesize from sunlight or food is not biologically active at first. Before the kidneys can produce the biologically active form of the vitamin, known as calcitriol, and release it into the blood, some metabolic processes must take place beforehand.</p><p>In addition, many organs have receptors to which the precursor of calcitriol binds. Further, this substance is also present in blood.</p><p>From this precursor, the organs then produce calcitriol themselves, which the body then uses for countless other processes in the body. This form of vitamin D thus regulates insulin secretion, inhibits tumor growth, and promotes the formation of red blood cells as well as the survival and activity of macrophages, which are important for the <a href="https://www.mdpi.com/2072-6643/5/7/2502/htm" target="_blank">immune system.</a></p>
Low Vitamin D, Severe COVID-19 Disease?<p>A research study carried out <a href="https://www.sciencedirect.com/science/article/pii/S2352364620300067?via%3Dihub" target="_blank">at the University of Hohenheim</a> has now established a link between vitamin D deficiency, certain previous diseases, and severe cases of COVID-19.</p><p>According to the study, "there is a lot of evidence that several non-communicable diseases (high blood pressure, diabetes, cardiovascular diseases, metabolic syndrome) are associated with low vitamin D plasma levels. These comorbidities, together with the often accompanying vitamin D deficiency, increase the risk of severe COVID-19 events."</p><p>"This statement is completely correct," said Martin Fassnacht, head of endocrinology at the University Hospital of Würzburg. However, he qualifies that it is a pure association, "i.e. a mere observation that these events occur together.</p><p>Dr. Fassnacht is very critical of the hype surrounding vitamin D, but not because he denies the vitamin serves important functions. However, studies on humans have not been able to show that vitamin D has the healing powers many often propagate.</p><p>Fassnacht says, "If you take a closer look, the hopes that the administration of vitamin D has a healing effect have not been confirmed so far."</p>
Association Versus Intervention Studies<p>Many studies on the vitamin are association or observational studies. "By definition, these studies cannot prove the causal relationship, but only point to mere correlations," said Fassnacht. The physician tries to illustrate this with an example:</p><p>"Imagine two groups of 80-year-olds. One group is spry, active and does sports. If you compare them with another group living in nursing homes, the difference in vitamin D levels will be dramatic. Life expectancy would also be extremely different."</p><p>But to try to explain the difference in fitness by vitamin D status alone is far too simplistic. "Vitamin D levels are a good measure of how sick someone is. But not more," says Fassnacht. </p><p>According to Fassnacht, none of the intervention studies carried out to date -- that specifically examined the effect of vitamin D on various diseases -- has been able to confirm the previous association and laboratory studies or the presumed positive effect of vitamin D.</p>
Further Research Is Needed<p>"If a coronavirus infection is suspected, it is therefore absolutely necessary to check the vitamin D status and quickly correct any possible deficit," said the recommendation of the paper published by the University of Hohenheim.</p><p>"Studies are underway to see whether vitamin D helps in COVID-19 infection, but I personally do not believe that this is really the case," says endocrinologist Fassnacht. Nevertheless, he says it is of course useful to carry out these studies.<br></p><p>"I don't want to rule out that there are actually subgroups of people who benefit from an additional vitamin D dose," he says. After all, this has been proven to be the case with a severe deficit.</p><p>In view of the study situation, Fassnacht does not think much of preventive, nationwide vitamin D substitutes. "My belief that the vitamin helps somewhere is very low. But, of course, I can be wrong."</p>
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