Tomorrow night, Friends of Science will broadcast my speech, Climate Activism: Undermining Free Speech, Free Thought & Free Choice. Click here for details. (If you aren’t able to tune in then, purchasing a ticket will permit you to stream the event later, at your convenience.)
40 minutes in length, this talk explores how prominent members of the establishment have worked to shut down climate-related dialogue and debate. Those who express minority opinions have been cast as defective, depraved individuals on a par with Holocaust deniers.
The people fueling this incredible intolerance are prime ministers, vice presidents, UN officials, Nobel laureates, and Pulitzer Prize winners. There’s nothing admirable about silencing non-conformist perspectives. That’s how democracy dies.
The cancel culture now on full display on social media, in newsrooms, and on university campuses took root early in the climate world. Perhaps if more people had objected – loudly and on principal – to that improper behaviour, we’d be in a healthier, more tolerant place today.
Researchers from the Niels Bohr Institute, University of Copenhagen have, in collaboration with Norwegian researchers in the ERC Synergy project, ICE2ICE, shown that abrupt climate change occurred as a result of widespread decrease of sea ice. This scientific breakthrough concludes a long-lasting debate on the mechanisms causing abrupt climate change during the glacial period. It also documents that the cause of the swiftness and extent of sudden climate change must be found in the oceans.
Scientific evidence for abrupt climate change in the past finally achieved
During the last glacial period, app. 10,000 – 110,000 years ago the northern hemisphere was covered in glacial ice and extensive sea ice, covering the Nordic seas. The cold glacial climate was interrupted by periods of fast warmup of up to 16.5 degrees Celsius over the Greenland ice sheet, the so called Dansgaard Oeschger events (D-O).
These rapid glacial climate fluctuations were discovered in the Greenland ice core drillings decades ago, but the cause of them have been hotly contested. D-O events are of particular significance today as the rate of warming seems to be very much like what can be observed in large parts of the Arctic nowadays. The new results show that the abrupt climate change in the past was closely linked to the quick and extensive decline in sea ice cover in the Nordic seas. Very important knowledge as sea ice is presently decreasing each year.
“Our, up until now, most extensive and detailed reconstruction of sea ice documents the importance of the rapid decrease of sea ice cover and the connected feedback mechanisms causing abrupt climate change”, says Henrik Sadatzki, first author of the study.
Sediment core and ice core data were combined in order to achieve the result
Under 180 ppm atmospheric CO2 concentration, life on earth begins to die.
The earth came very close to that point not long ago during the Ice Ages (20,000 years ago). Then the planet warmed naturally, and an increase in atmospheric CO2 to over 200 ppm followed (new study here).
The earth saw CO2 levels of close to 8000 ppm in the past, i.e. about 20 times more than today. The following chart shows the earth’s atmospheric CO2 concentrations for the past 600 million years.
Today, thanks in large part to mankind, concentrations have risen to over 400 ppm, yet historically this remains at the very low end of the scale compared to the thousands of ppm seen naturally earlier in history.
Greening planet
Today, definitely a safer level would be near 1000 ppm. Studies unanimously show plant growth at these higher levels is far enhanced. Already today we see clear evidence the planet is greening Zhu et al. (2016), in part due to the fertilizations taking place through human emissions:
by P. Homewood, Dec 3, 2020 in NotaLotofPeopleKnowThat
Inevitably the busy hurricane season this year is getting blamed on global warming:
But first of all, let’s get one thing clear – there was not a record number of hurricanes this year in the Atlantic. There were 13 hurricanes, compared to 15 in 2005:
It is true that there were more named storms, which includes tropical storms as well as hurricanes, this season than in any other year, but this is quite meaningless. Over the years, reporting practices have drastically changed, so that more storms are spotted and named now.
My last ruminating climate guest post compared ‘big’ climate science issues to ‘weeds’. This is a follow on big picture post, from a different perspective, albeit partly overlapping the first. (First perspective was basic science claims, this is resulting predictions.) I am tired of whack-a-mole minutia, and think that detailed rebuttals to garbage climate alarm papers no longer matter in our politicized ‘GND’ environment.
This post incorporates by reference (not by links [lazy me], just by key WUWT search words or other occasional generic mentions) many previous WUWT guest posts plus other writings that relative newbies can review for your selves. All the previous referenced posts and other writings have many linked reference footnotes for your personal follow up. Trolls, beware.
Since the Charney and Hanson 1988 climate alarm proceedings, there have been many dire climate prognostications. NONE have come true. Lets review some of the most salient. (We skip trivial stuff like Dr. Viner’s since disappeared 1990 prediction that ‘UK children will not know snow’—since they soon did.)
Temperatures have recently suddenly risen. This was the essence of MBH’s 1999 hockey stick, and later 2013’s Marcott’s equivalent. Both ‘observations’ have been fully discredited. (I personally proved Marcott’s academic misconduct in essay ‘High Stick Foul’ in ebook Blowing Smoke in late 2014.) True, temperatures have risen since the last Thames Ice Fair in 1814, as the world warmed out of the Little Ice Age (LIA). Climate changes… How much, we dunno for three reasons:
In the US, early data is sparse, and later data is contaminated by multiple surface station siting issues. The latter issue proven here at WUWT by 2009.
Outside the US and Europe, land temp data is worse than just sparse, it often does not exist at all, or only recently.
Over oceans comprising 71% of the Earth surface, data is worse than just sparse. It is mostly non-existent (SH). Where it does exist (until ARGO) it is contaminated by trade routes and ladings.
Temperatures will increase unsustainably. This is based on the IPCC nominal ECS of about 3, recently goosed up by forthcoming CMIP6. Except, temps have NOT. As just one example of predictive model falsification, the CMIP4/5 models predicted tropical troposphere hotspot simply does NOT exist. There are several reasons why these models have abjectly failed, explained in several previous posts.
Sea level rise accelerates. Except it hasn’t. And the most accurate SLR dGPS corrected tide gauges not only show no acceleration, they show it with ~closure (thermosteric rise plus ice sheet melt). And, the present rise rate is no different from the peak of the previous interglacial, the Eemian. (Details are in previous WUWT posts and in essay PseudoPrecision in eBook Blowing Smoke)
Polar bears will go extinct from lack of summer sea ice. Except as Dr. Crockford has amply explained, this is an alarmist misconception at two levels. First, polar bears do not depend on summer sea ice. They depend on spring ice during the seal welping season, their main feeding cycle. No one suggests that is diminishing. Second, Arctic sea ice is cyclical, and the notion that it is spiraling ever down (Wadham’s alarm) is just factually wrong. (Essay Northwest Passage in ebook Blowing Smoke covers the Arctic Ice cycle issue in historical detail.)
Extreme weather increases. Except per IPCC SRES (2012) it has NOT, anywhere, in any form. (Climate is rigorously defined as the envelope of weather [like temp, rainfall] over at least 30 years.) All the annual recent climate ‘extremes’ in the press are just weather (like this year’s accurately predicted overactive Atlantic hurricane season). As an example, landfalling US hurricane ACE over 30 years has NOT increased as a recent paper claimed—by falsely including hurricanes that touched land but then went back out to sea and re-intensified.
There are also a lot of unworkable ‘Green New Deal solutions’ to this non-problem. The most prominent are ‘renewable electric generation’ and EV’s.
The UK is set for a flurry of heavy and rare early-December snow this week, with even far southern regions on course for disruptive accumulations.
The first dusting is expected to arrive across the northern half of the UK today, Dec. 2, and more will follow in the coming days, to more southern regions, too, as a descending Arctic blast tightens its grip on the nation.
Heavy snow is likely to have buried vast swathes of the country by Friday, with forecasters suggesting the bitter wintry mix could even rage on until the middle of next week -at least- with hard frosts also expected: “In the clear periods between bands of wintry showers, frosts are likely and these could be sharp or even severe in prolonged clear conditions in north-western parts of the UK,” warns Steve Ramsdale, Chief Meteorologist at the Met Office.
Over the next 5 days alone, latest GFS runs reveal Britain will be hit by a substantial smattering of early-season snow as frigid polar air rides anonymously-far south on the back of a meridional jet stream—a setup shown to increase during times of low solar activity–such as we’re suffering now:
Archaeologists have published a new paper in The Holocene, DOI: 10.1177/0959683620972775 that confirms what previous research has shown: numerous periods during recent history have been as warm as or warmer than the present.
The press release was covered in The New Scientist, “Climate change has revealed a huge haul of ancient arrows in Norway,” and discusses the findings of researchers from the Universities of Cambridge, Oslo, and Bergen. The researchers discovered a “treasure trove” of arrows, arrowheads, clothing, and other artifacts, recently uncovered by a receding ice in a mountainous region of southern Norway. The oldest arrows and artifacts date from around 4100 BC. The youngest artifacts date from approximately AD 1300, at the end of the Medieval Warm Period. Because present temperatures are only now exposing some of the artifacts were deposited when no ice covered the ground, temperatures were clearly warmer during the many periods when artifacts were deposited.
Along with the arrows and other artifacts, the researchers found nearly 300 specimens of reindeer antler and bone exposed by receding ice. Because reindeer presently frequent the area, the archaeologists say they are confident the area has served as an important hunting ground, off and on, for millennia.
The fact that artifacts were found from several different periods separated by hundreds and thousands of years in time indicates the ice and snow in the region has expanded and receded several times over the current interglacial period.
Elsewhere in Norway, scientists also recently uncovered what they have labeled a “Viking highway,” a route the ancient peoples inhabiting the region used to travel regularly. The route had for approximately 2,000 years been covered by snow and ice that expanded as the region’s climate shifted from a relatively warm period, comparable to present temperatures, to a colder period during which “permanent” thick snow and ice cover formed. This erected the equivalent of a “highway closed” sign.
En Belgique, l’exploitant du parc nucléaire Electrabel a annoncé en interne son intention de cesser les investissements nécessaires à la prolongation (hypothétique) de réacteurs. Il est prévu que les derniers réacteurs nucléaires du pays soient arrêtés d’ici à fin 2025 sauf si…
Combien y a-t-il de réacteurs nucléaires en service en Belgique ?
Le parc nucléaire belge est composé de 7 réacteurs à eau pressurisée tous exploités par Electrabel, filiale du groupe français Engie(1). Connectés au réseau électrique entre 1974 et 1985, ces réacteurs sont répartis entre 2 centrales :
la centrale de Doel en Flandre (à 15 km du port d’Anvers et près de la frontière néerlandaise), composée de 4 réacteurs d’une puissance cumulée de 2 934 MW ;
la centrale de Tihange en Wallonie (à 30 km de Liège), composée de 3 réacteurs d’une puissance cumulée de 3 008 MW.
En 2019, le parc nucléaire belge a généré près de 41,4 TWh, soit environ 46,5% de la production électrique totale du pays(2). « Sur base d’une analyse temporelle plus étendue, on observe que la contribution du nucléaire à la consommation finale d’électricité varie selon les année entre grosso modo 35%(3)et 50% selon la disponibilité des unités », précise Michel Huart, maître de conférences à l’ULB, spécialiste en « énergie et durabilité ».
On 4 December 2019, in her first Brussels press conference the newly appointed president of the European Commission, Ursula von der Leyen, said she will lead a ‘geopolitical Commission’. One year later, we are still waiting for some ‘geopolitical’ results. Indeed, it is rather a ‘green Commission’, as even the Covid crisis – though its cause is totally unrelated to energy – is used to reinforce the ‘energy transition’, wanted by the German Chancellor. In September 1999, arriving as president of the European Commission Mr Romano Prodi has been convinced that energy was not so important and that it did not deserve to be managed by an energy general directorate. It merged it with the transport energy directorate. What a difference twenty later: energy is now the centre of all interest, not for its own merits, but because it is at the centre of the climate change debate. But are politicians able to drive the vast, complex and multi-dependent energy system? Is their willingness’s able to master it effective?
Not surprisingly, this concept of ‘energy transition’ was invented in Germany in the early 1980s. In a book entitled ‘Energie-Wende, Wachstum und Wohlstand ohne Erdöl und Uran’ published in 1980, researchers from a German environmentalist organisation, the Öko-Institut, proposed to stop using oil and uranium. The simplified term ‘EnergieWende’ was quickly coined to refer to the fight against climate change and the abandonment of nuclear energy. Germany has firmly followed this track since the beginning of the 21st century, aiming at a radical change in its energy policy. The German population has also adhered to this concept because, after 40 years of green nuclear bashing, it has become widely opposed tonuclear energy.
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Figure 1Correlation of electricity price for dwellings with intermittent renewable electricity production
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Début avril 2020, sans que personne ne s’en rende compte, une expérience scientifique très intéressante a été menée, et ce de manière involontaire. En effet, 3,9 milliards de personnes dans le monde ont été placées en confinement suite à l’expansion du virus Covid-19. Il en a résulté une très forte diminution du trafic aérien et automobile accompagné d’une fermeture temporaire de nombreuses industries dans le monde entier. Cette expérience a évidemment provoqué une chute drastique des émissions de CO2 anthropique. Mais pendant l’expérience, les détecteurs mesurant le taux de CO2 atmosphérique ont continué à tourner. Nous disposons maintenant des résultats. Cette diminution abrupte des émissions a-t-elle eu un impact sur le taux de CO2 atmosphérique, ou sur la température globale? C’est ce dont nous allons discuter dans le présent article.
1. Bref rappel concernant la mesure du taux de CO2 atmosphérique.
L’observatoire de Mauna Loa à Hawaii est l’un des plus célèbres sites mesurant en continu le taux de CO2 atmosphérique. Ce taux est mesuré avec précision depuis 1959 par une méthode de spectrométrie infra-rouges, et depuis 2019 par la méthode CRDS (Cavity Ring-Down Spectroscopy). La courbe obtenue est croissante avec des oscillations régulières (Figure 1). De ± 320 ppm en 1959 on arrive à ± 410 ppm en 2020. SCE a d’ailleurs publié une suite d’articles sur ce sujet[1].
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Figure 3. Taux de CO2 mesuré à Mauna Loa depuis 2017. Source : Koutsoyiannis & Kundzewicz (2020) Sci 2020, 2, 72
The present paper contributes a critical commentary on the recent finding by Mann, M. E., Steinman, B. A. and Miller, S. K (2020). Absence of internal multidecadal and interdecadal oscillations in climate model simulations. Nat. Commun. 11, 1–9.
Climate oscillations are recurring large-scale fluctuations in the surface temperatures of the oceans in connection with the atmosphere. This commentary focuses on the Pacific Decadal Oscillation (PDO, interdecadal timescale) and the Atlantic Multidecadal Oscillation (AMO, multidecadal timescale), which have been regarded as intrinsic climate drivers on the adjacent continents in numerous studies based on observations and paleoclimate reconstructions (Henley, 2017; O’Reilly et al., 2017). In a recent paper, Michael E. Mann and colleagues (Mann et al., 2020, hereafter M20) fail to find a PDO signal in global measured and modeled temperatures that is statistically different from noise. They further propose that the significant AMO-like signal is mainly due to anthropogenic aerosols in the 20th century, and to statistical artifacts before. Therefore they doubt the intrinsic nature of the two oscillations. The present paper shows that M20’s results are largely artifacts themselves with issues ranging from using inadequate data and referencing improper literature on anthropogenic aerosols with regards to the AMO to inappropriately interpreting the results with regards to the PDO.
Fundamental to science is measurement. It is a way of objectively assessing something, anything, even the state of a coral reef, even of an individual coral. Historically coral growth rates were measured by coring the really old massive Porites.
Like tree rings in temperate forests, the massive old Porites can be cored to see the banding and from this it is possible to calculate coral calcification rates which are a measure of the growth rate of individual corals.
Peter Ridd has been asking for some quality assurance of so many of the measurements relating to Great Barrier Reef health, including coral growth rates. Key Australian institutions have responded by stonewalling, and in the case of James Cook University, actually sacking him. After two rounds in the federal courts his appeal against his dismissal is finally going to the High Court of Australia, with the next hearing probably in February 2021. While the lawyers are preoccupied with Peter’s rights, or otherwise, to academic freedom and freedom of speech, my concern is whether Peter is actually telling the truth when he says that the Great Barrier Reef is resilient and definitely not dying from coral bleaching, though there is a problem with the integrity of the science.
Nous assistons aujourd’hui à des conversations interminables sur l’« énergie » sans que ce dont on parle soit dûment précisé. Parle-t-on de l’énergie pour chauffer notre maison ou bien de celle nécessaire pour charger un véhicule électrique ? Ce n’est pas indifférent. Beaucoup ignorent les principes fondamentaux, alors que d’autres les connaissent mais évitent soigneusement d’en tenir compte.
L’un de ces principaux fondamentaux est la distinction entre « énergie primaire » et « énergie finale ». Précisons qu’il ne s’agit pas d’une vaine querelle de mots : une bonne compréhension a un impact fondamental en matière de choix de politique énergétique et d’adoption lucide de cette politique par les citoyens concernés.
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Lorsque l’on ramène le poids des filières renouvelables intermittentes dans le bilan en énergie primaire de l’UE – l’indicateur fondamental lorsqu’on se préoccupe d’énergie, que ce soit pour les aspects géopolitiques, de balance des paiements et de décarbonation – leur part se limite ainsi à quelques pourcents. En 2018, ces énergies si populaires dans les médias n’ont ainsi compté que pour 2,5% de la consommation d’énergie primaire dans l’UE à 27 (1,4% en France, 1,8% en Belgique et 4,3% en Allemagne)…
At the current concentrations, the forcing power for greenhouse gases like CO2 (~400 ppm) and CH4 (1.8 ppm) are already saturated. Therefore, even doubling the current greenhouse gas concentrations may only increase their forcings “by a few percent” in the parts of the atmosphere where there are no clouds. When clouds are present, the influence of greenhouse gases is even further minimized.
While the “consensus” model view is that doubling CO2 from 280 ppm to 560 ppm results in a surface forcing of 3.7 W/m², Wijngaarden and Happer find doubling CO2 concentrations from 400 to 800 ppm increases climate forcing by 3 W/m². This warms the surface by 1.4 K as it “hypothetically” cools the upper atmosphere by 10 K.
Equilibrium climate sensitivity (when positive feedback with water vapor is included) is identified as 2.2 K, which is within 10% of multiple other analyses.
by Ed Walbroehl, Nov 27, 2020 in ClimateChangeDispatch
Take your pick. The Mainstream Media (MSM) are using all three to stifle debate on climate change just like the current presidential election. What has happened to the American news media in this country?
I can remember a time when the MSM would do a story and would give you both sides of the issue and let the viewer decide what to think.
It’s amazing to see a business so willing to undermine its own credibility to push a certain narrative thinking everybody is stupid and will buy whatever they say.
In the case of the climate change issue, they even went as far as announcing no more so-called climate skeptics would be invited on their shows to give other opinions as is the case with NBC’s Meet the Press for example.
So much for a fair and balanced debate. Oh! I forgot. According to them, the science is settled. By who? That phrase the science is settled is the first clue that tells you a scientist is probably not a real scientist.
Real scientists know that new methods, learning, tools, ideas, and experiments will come about that will change our current knowledge and understanding of many scientific issues.
The MSM are even willing to lose viewers by lying to them. Look how foolish they looked when all this Russian collusion with the president turned out. Many viewers left after they found out they were being lied to.
Look what’s happening now as people start checking the facts on their own about climate change. They’re seeing that they are being lied to once again.
It’s probably why in many polls, the American people rank climate change near the bottom of what worries us, and why trust in the media is so low.
Surveys of public opinion show that a significant minority of the population are sceptical about climate change, and many suggest that doubt is increasing. The Internet, in particular the blogosphere, provides a vast and relatively untapped resource of data on the thinking of climate sceptics. This paper focuses on one particular example where over 150 climate sceptics provide information on their background, opinion on climate change and reasons for their scepticism. Although this data cannot be regarded as representative of the general public, it provides a useful insight into the reasoning of those who publicly question climate science on the web. Points of note include the high level of educational background, the significant numbers who appear to have been converted from a position of climate concern to one of scepticism, and the influence of blogs on both sides of the climate debate.
The main concern of this group of sceptics is with the quality of the science, focusing on issues such as statistics, data handling and reliance on models, with the hockey stick picture acting as the icon for the dispute.
https://www.tandfonline.com/doi/…It is behind a paywall but there is a preprint version here: https://ipccreport.files.wordpre…The paper is based on comments that 150 skeptics wrote on a blog thread asking them about their background. Reasons include:
Hyped, exaggerated claims in the media
Previous experience of scare stories that have failed to materialize
Political activism
Climategate
Shoddy science Full detail of survey results below :
The United States has a very dense population of weather stations, data from them is collected and processed by NOAA/NCEI to compute the National Temperature Index. The index is an average temperature for the nation and used to show if the U.S. is warming. The data is stored by NOAA/NCEI in their GHCN or “Global Historical Climatology Network” database. GHCN-Daily contains the quality-controlled raw data, which is subsequently corrected and then used to populate GHCN-Monthly, a database of monthly averages, both raw and final. I downloaded version 4.0.1 of the GHCN-Monthly database on October 10, 2020. At that time, it had 27,519 stations globally and 12,514 (45%) of them were in the United States, including Alaska and Hawaii. Of the 12,514 U.S. stations, 11,969 of them are in “CONUS,” the conterminous lower 48 states. The current station coverage is shown in Figure 1.
Figure 1. The GHCN weather station coverage in the United States is very good, except for northern Alaska. There are two stations in the western Pacific that are not shown.
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igure 4. The orange line is the uncorrected monthly mean temperature, which is “qcu” in NOAA terminology. The blue line is corrected, or NOAA’s “qcf.”
Resources like water and iron are important because they will enable future research to be conducted on, and launched from, the moon. “You don’t want to bring resources for mission support from Earth, you’d much rather get them from the Moon. Iron is important if you want to build anything on the moon; it would be absurdly expensive to transport iron to the moon,” said Elvis. “You need water to survive; you need it to grow food — you don’t bring your salad with you from Earth — and to split into oxygen to breathe and hydrogen for fuel.”
Interest in the moon as a location for extracting resources isn’t new. An extensive body of research dating back to the Apollo program has explored the availability of resources such as helium, water, and iron, with more recent research focusing on continuous access to solar power, cold traps and frozen water deposits, and even volatiles that may exist in shaded areas on the surface of the moon. Tony Milligan, a Senior Researcher with the Cosmological Visionaries project at King’s College London, and a co-author on the paper said, “Since lunar rock samples returned by the Apollo program indicated the presence of Helium-3, the moon has been one of several strategic resources which have been targeted.”
The Global Carbon Project estimated that during the most intense period of the shutdown, daily CO2 emissions may have been reduced by up to 17% globally due to the confinement of the population. As the duration and severity of confinement measures remain unclear, the prediction of the total annual emission reduction over 2020 is very uncertain.
Field geology at Mars’ equator points to ancient megaflood
By Blaine Friedlander | November 18, 2020
Floods of unimaginable magnitude once washed through Gale Crater on Mars’ equator around 4 billion years ago – a finding that hints at the possibility that life may have existed there, according to data collected by NASA’s Curiosity rover and analyzed in joint project by scientists from Jackson State University, Cornell, the Jet Propulsion Laboratory and the University of Hawaii.
“This composite, false-color image of Mount Sharp inside Gale crater on Mars shows geologists a changing planetary environment. On Mars, the sky is not blue, but the image was made to resemble Earth so that scientists could distinguish stratification layers. NASA/JPL/Provided” (Cornell Chronicle)
The full text of the excellent paper is available:
[…]
“We identified megafloods for the first time using detailed sedimentological data observed by the rover Curiosity,” said co-author Alberto G. Fairén, a visiting astrobiologist in the College of Arts and Sciences. “Deposits left behind by megafloods had not been previously identified with orbiter data.”
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The most likely cause of the Mars flooding was the melting of ice from heat generated by a large impact, which released carbon dioxide and methane from the planet’s frozen reservoirs. The water vapor and release of gases combined to produce a short period of warm and wet conditions on the red planet.
[…]
The Curiosity rover science team has already established that Gale Crater once had persistent lakes and streams in the ancient past. These long-lived bodies of water are good indicators that the crater, as well as Mount Sharp within it, were capable of supporting microbial life.
“Early Mars was an extremely active planet from a geological point of view,” Fairén said. “The planet had the conditions needed to support the presence of liquid water on the surface – and on Earth, where there’s water, there’s life.
“So early Mars was a habitable planet,” he said. “Was it inhabited? That’s a question that the next rover Perseverance … will help to answer.”
Perseverance, which launched from Cape Canaveral on July 30, is scheduled to reach Mars on Feb. 18, 2021.
Despite all the money-generating gloomy predictions of sinking islands, we reported in 2013 on how the Maldives was planning to build 30 new luxury hotels for future tourists.
We recall how in 2012, the former President of the Maldives Islands, Mohamed, Nasheed said: “If carbon emissions continue at the rate they are climbing today, my country will be underwater in seven years.”
4 new airports!
Well, today the islands have not gone underwater and remains popular with tourists like never before. And to help with the job of ferrying the 1.7 million (2019) tourists to and from the resort islands, the Maldives have recently opened 4 new airports, according to German site Aero here!
Tolerating diversity of opinion, in the form of providing wildly popular Murdoch Media personalities like Andrew Bolt a platform, does not mean Murdoch agrees with everything those personalities say.
But I guess old fashioned ideas like news managers giving their best journalists editorial freedom are no longer encouraged, at least when it comes to climate change.
Greens can be unforgiving of minor deviations from their dogma, even from people who helped found their movement.
Retired NASA scientist James Hansen, whose 1988 testimony pretty much kick started the climate movement, was accused of being a “denier” in 2015, because he does not think renewables alone will be enough to curb global CO2 emissions.
Floods of unimaginable magnitude once washed through Gale Crater on Mars’ equator around 4 billion years ago — a finding that hints at the possibility that life may have existed there, according to data collected by NASA’s Curiosity rover and analyzed in joint project by scientists from Jackson State University, Cornell University, the Jet Propulsion Laboratory and the University of Hawaii.
The research, “Deposits from Giant Floods in Gale Crater and Their Implications for the Climate of Early Mars,” was published Nov. 5 in Scientific Reports.
The raging megaflood — likely touched off by the heat of a meteoritic impact, which unleashed ice stored on the Martian surface — set up gigantic ripples that are tell-tale geologic structures familiar to scientists on Earth.
“We identified megafloods for the first time using detailed sedimentological data observed by the rover Curiosity,” said co-author Alberto G. Fairén, a visiting astrobiologist in the College of Arts and Sciences. “Deposits left behind by megafloods had not been previously identified with orbiter data.”
As is the case on Earth, geological features including the work of water and wind have been frozen in time on Mars for about 4 billion years. These features convey processes that shaped the surface of both planets in the past.
This case includes the occurrence of giant wave-shaped features in sedimentary layers of Gale crater, often called “megaripples” or antidunes that are about 30-feet high and spaced about 450 feet apart, according to lead author Ezat Heydari, a professor of physics at Jackson State University.
The antidunes are indicative of flowing megafloods at the bottom of Mars’ Gale Crater about 4 billion years ago, which are identical to the features formed by melting ice on Earth about 2 million years ago, Heydari said.
Our understanding of the slow, deep carbon cycle, key to Earth’s habitability is examined here. Because the carbon cycle links Earth’s reservoirs on nano- to mega-scales, we must integrate geological, physical, chemical, biological, and mathematical methods to understand objects and processes so small and yet so vast. Here, we profile current research in the physical chemistry of carbon in natural and model systems, processes ongoing in the deepest portions of planets, and observations of carbon utilization by the deep biosphere. The relationships between the carbon cycle and planetary habitability are undeniable, forming a conceptual anchor to all work in deep carbon science.
Carbon minerals respond to changing pressures, temperatures, and geochemical conditions. The geologic record preserves evidence of transitional periods at the submicroscopic to regional landscape scales, and demonstrates interplay between carbon-bearing phases and the biosphere. In a new review, Morrison et al. (2020) cast a retrospective look through deep time and call for emerging approaches to clarify the coevolution of the biosphere and geosphere.
Critical to transformations of Earth’s carbon inventory over time are indomitable tectonics – which influence Earth’s surface environment, weathering, metamorphism, magmatism, and volcanism. The slow, deep (endogenous) carbon cycle refines and re-distributes carbon within Earth. In fact, over the 200-million-year-long time scale, important tectonic controls on carbon cycling emerge (Wong et al., 2019). Wong et al. (2019) document the spatiotemporal evolution of fluxes inferred from plate tectonic reconstructions, and highlight CO2 fluxes from continental rift settings post-Pangea. The volcanic flux of CO2 has been successfully reconstructed by direct study of CO2 flux through lakes and adjacent soils (Hughes et al., 2019), an important and often overlooked CO2 valve linking lithosphere, atmosphere, and hydrosphere. From perspectives rooted deeper in the tectonic system, the important roles that serpentinites play in the carbon cycle are evaluated in two senses: 1) serpentinite as a carbon vector to the deep mantle (Merdith et al., 2019), and 2) serpentine mud volcanoes as sites of carbon mobilization through organic acid release (Eickenbusch et al., 2019), in a Mariana Trench case study.
Warm, moist rivers of air in Antarctica play a key role in creating massive holes in sea ice in the Weddell Sea and may influence ocean conditions around the vast continent as well as climate change, according to Rutgers co-authored research.
Scientists studied the role of long, intense plumes of warm, moist air – known as atmospheric rivers – in creating enormous openings in sea ice. They focused on the Weddell Sea region of the Southern Ocean near Antarctica, where these sea ice holes (called polynyas) infrequently develop during the winter. A large hole in this area was first observed in 1973 and a hole developed again in the late winter and early spring of 2017.
IMAGE: A BAND OF CLOUDS IN AN ATMOSPHERIC RIVER EXTENDING FROM SOUTH AMERICA TO THE ANTARCTIC SEA ICE ZONE ON SEPT. 16, 2017. view more CREDIT: NASA
In the first study of its kind, published in the journal Science Advances, scientists found that repeated strong atmospheric rivers during late August through mid-September 2017 played a crucial role in forming the sea ice hole. These rivers brought warm, moist air from the coast of South America to the polar environment, warming the sea ice surface and making it vulnerable to melting.
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