by Florida State University, July 18, 2018 in ScienceDaily
Deep in the ocean’s twilight zone, swarms of ravenous single-celled organisms may be altering Earth’s carbon cycle in ways scientists never expected, according to a new study from Florida State University researchers.
In the area 100 to 1,000 meters below the ocean’s surface — dubbed the twilight zone because of its largely impenetrable darkness — scientists found that tiny organisms called phaeodarians are consuming sinking, carbon-rich particles before they settle on the seabed, where they would otherwise be stored and sequestered from the atmosphere for millennia.
This discovery, researchers suggest, could indicate the need for a re-evaluation of how carbon circulates throughout the ocean, and a new appraisal of the role these microorganisms might play in Earth’s shifting climate.
The findings were published in the journal Limnology and Oceanography.
by K. Richard, July 12, 2018 in NoTricksZone
Unearthed new evidence (Mangerud and Svendsen, 2018) reveals that during the Early Holocene, when CO2 concentrations hovered around 260 ppm, “warmth-demanding species” were living in locations 1,000 km farther north of where they exist today in Arctic Svalbard, indicating that summer temperatures must have been about “6°C warmer than at present”.
Proxy evidence from two other new papers suggests Svalbard’s Hinlopen Strait may have reached about 5 – 9°C warmer than 1955-2012 during the Early Holocene (Bartels et al., 2018), and Greenland may have been “4.0 to 7.0 °C warmer than modern [1952-2014]” between 10,000 and 8,000 years ago according to evidence found in rock formations at the bottom of ancient lakes (McFarlin et al., 2018).
In these 3 new papers, none of the scientists connect the “pronounced” and “exceptional” Early Holocene warmth to CO2 concentrations.
by Ulli Kulke, June 29, 2018 in GWPF
Henrik Svensmark, head of solar research at Denmark’s Technical University in Copenhagen, is one of them. And he ventures far ahead in the climate debate, the research with perhaps the greatest significance of our time. His research is contested, of course. Nevertheless, Svensmark and his critics agree that the topic “sun” deserves more attention in climate research. The participants are particularly interested in the complex interplay between our central star and ionizing emissaries from the depths of the galaxy – “cosmic radiation”.
Svensmark says: “The climate is influenced more by changes in cosmic radiation than by carbon dioxide”. CO2 has an effect, of course, “but it is far less than most current climate models assume, and also less than the influence of cosmic radiation”. In his opinion, a doubling of the greenhouse gas in the atmosphere would cause an increase in global temperature of at most one degree, and not two degrees, as is now generally accepted.
In other words, the “climate sensitivity” of carbon dioxide is only half as high as assumed (…)
by David Middleton, June 19, 2018 in WUWT
From ARS Technica, one of the most incoherent things I’ve ever read…
The shocking thing is that Howard Lee has a degree in geology. The fact that he makes his living as an “Earth Science writer” and not as a geologist might just be relevant.
Can the Miocene tell our future? I’ll let Bubba’s mom answer that question:
by Prof. F. Vahrenholt, June 12, 2018 in NoTricksZone
Only Europe and Canada exiting coal
Another reason the Paris Accord is collapsing is because it’s not going to do anything we were promised it would.
When it comes to coal, Vahrenholt notes, so far only Europe and Canada have expressed some sort of a commitment to exit coal, and then he reminds us China, India and all developing countries will still be permitted to continue “massively” expanding their use of coal. He writes : (…)
by Anthony Watts, June 15, 2018 in WUWT
We covered this yesterday, but today the official press release came out, so worth covering again. Via Eurekalert
Land-based portion of massive East Antarctic ice sheet retreated little during past eight million years
But increases in atmospheric carbon dioxide levels could affect stability and potential for sea level rise
Large parts of the massive East Antarctic Ice Sheet did not retreat significantly during a time when atmospheric carbon dioxide concentrations were similar to today’s levels, according to a team of researchers funded by the National Science Foundation (NSF). The finding could have significant implications for global sea level rise.
by Ross C.L. et al., 2017, June 10, 2018 in CO2Science
The global increase in the atmosphere’s CO2 content has been hypothesized to possess the potential to harm coral reefs directly. By inducing changes in ocean water chemistry that can lead to reductions in the calcium carbonate saturation state of seawater (Ω), it has been predicted that elevated levels of atmospheric CO2 may reduce rates of coral calcification, possibly leading to slower-growing — and, therefore, weaker — coral skeletons, and in some cases even death.
As we have previously pointed out on our website, however (see The End of the Ocean Acidification Scare for Corals and A Coral’s Biological Control of its Calcifying Medium to Favor Skeletal Growth), such projections often fail to account for the fact that coral calcification is a biologically mediated process, and that out in the real world, living organisms tend to find ways to meet and overcome the many challenges they face; and coral calcification in response to ocean acidification is no exception.
See also in French
by Kenneth Richard, June 7, 2018 in NoTricksZone
It has long been established in the scientific literature (and affirmed by the IPCC) that CO2 concentration changes followed Antarctic temperature changes by about 600 to 1000 years during glacial-interglacial transitions throughout the last ~800,000 years (Fischer et al., 1999; Monnin et al., 2001; Caillon et al., 2003; Stott et al., 2007; Kawamura et al., 2007).
In contrast, two new papers cite evidence that the timing of the lagged CO2 response to temperature changes may have ranged between 1300 and 6500 years in some cases. It would appear that a millennial-scale lagged response to temperature undermines the claim that CO2 concentration changes were a driver of climate in the ancient past.
by Anthony Watts, June 6, 2018 in WUWT
We have mentioned countless times on this blog that the warming oceans are evidence that CO2 is not the cause of global warming. To understand the climate you must first understand the oceans. The oceans control the global climate. As the oceans warm, they warm and alter the humidity of the atmosphere above them. The problem is, as we have pointed out countless times, CO2’s only defined mechanism by which to affect climate change is through the thermalization of LWIR between 13 and 18µ.
LWIR between 13 and 18µ doesn’t penetrate or warm the oceans. Visible radiation, mainly from the high energy blue end of the spectrum does. CO2 is transparent to incoming visible radiation. The energy stored in the atmosphere and land is insignificant when compared to the oceans. The oceans contain 2,000x the energy of the atmosphere, so small changes to the oceans can mean big changes in the atmospheric temperature. The oceans also produce vast amounts of CO2 (20 x the amount man produces), and the most abundant and potent greenhouse gas, water vapor.
by Prof. Dr. P. Berth, 5 juin 2018, in ScienceClimatEnergie.be
Voici quelques réflexions sur la théorie de l’acidification des océans. Selon cette théorie, le pH des océans diminuerait inlassablement, en raison du CO2 qui ne cesse de s’accumuler dans l’atmosphère.
• Les mesures directes de pH sont récentes et nous n’avons aucun recul. Selon les médias et les ONG écologistes, qui se basent sur le GIEC et sur certaines publications (e.g., Caldeira & Wickett 2003), le pH des océans aurait été de 8.25 en 1750. Cependant, il faut savoir que personne n’a jamais mesuré le pH des océans en 1750, puisque le concept de pH n’a été inventé qu’en 1909 (par le danois Søren P.L. Sørensen), et que les premiers appareils fiables pour mesurer le pH ne sont apparus qu’en 1924… Nous ne sommes donc pas certains de cette valeur de 8.25 pour 1750… La valeur de 8.25 est donc obtenue par des mesures indirectes et n’est donc pas certaine.
• A l’heure d’aujourd’hui, tous les pH sont possibles. Lorsqu’on dit que les océans actuels sont à un pH de 8.1, de quel océan parle-t-on? S’agit-il du pH moyen global? Si c’est de cela qu’on parle, quelle est l’incertitude sur la mesure? (i.e., l’écart-type?). Ceci n’est jamais indiqué. Il faut savoir que si l’on prend un jour de la semaine, tous les pH sont possibles dans les océans, comme l’illustre très bien la figure suivante.
by David Middleton, June 5, 2018 in WUWT
The Fable of Chicken Little of the Sea
Guest essay by David Middleton,
When if comes to debunking Gorebal Warming, Chicken Little of the Sea (“ocean acidification”) and other Warmunist myths, my favorite starting points are my old college textbooks.
Way back in the Pleistocene (spring semester 1979) in Marine Science I, our professor, Robert Radulski, assigned us The Oceans by Sverdrup (yes, that Sverdrup), Johnson and Fleming. Even though it was published in 1942, it was (and may still be) considered the definitive oceanography textbook. I looked up “ocean acidification” in the index… It wasn’t there.
The notion that CO2 partial pressure influences the pH of seawater isn’t a new concept, *surely* ocean acidification must have been mentioned in at least one of my college textbooks.
by K. Richard, June 4, 2018 in NoTricksZone
Dr. Boris M. Smirnov, a prominent atomic physicist, has authored 20 physics textbooks during the last two decades. His latest scientific paper suggests that the traditional “absorption band” model for calculating the effect of atmospheric CO2 during the radiative transfer process is flawed. New calculations reveal that the climate’s sensitivity to a doubling of the CO2 concentration is just 0.4 K, and the human contribution to that value is a negligible 0.02 K.
by Willis Essenbach, May 29, 2018 in WUWT
Inspired by Richard Keen’s interesting WUWT post on using eclipses to determine the clarity of the atmosphere, I went to the website of the Hawaiian Mauna Loa Observatory. They have some very fascinating datasets. One of them is a measurement of direct solar radiation, minute by minute, since about 1980.
I thought that I could use that dataset to determine the clarity of the atmosphere by looking at the maximum downwelling solar energy on a month by month basis. I’ve described my method of extracting the maximum solar energy from the minute by minute data in the appendix for those interested.
by John Harz, May 5, 2018 in SkepticalScience
A chronological listing of news articles posted on the Skeptical Science Facebook Page during the past week.
Recent CO2 measurements at Mauna Loa Observatory in Hawaii. (Scripps Institution of Oceanography)
by Fred Singer, May 15, 2018 in TheWallStreetJournal
It is generally thought that sea-level rise accelerates mainly by thermal expansion of sea water, the so-called steric component. But by studying a very short time interval, it is possible to sidestep most of the complications, like “isostatic adjustment” of the shoreline (as continents rise after the overlying ice has melted) and “subsidence” of the shoreline (as ground water and minerals are extracted).
I chose to assess the sea-level trend from 1915-45, when a genuine, independently confirmed warming of approximately 0.5 degree Celsius occurred. I note particularly that sea-level rise is not affected by the warming; it continues at the same rate, 1.8 millimeters a year, according to a 1990 review by Andrew S. Trupin and John Wahr. I therefore conclude—contrary to the general wisdom—that the temperature of sea water has no direct effect on sea-level rise. That means neither does the atmospheric content of carbon dioxide.