The Decline Effect – Part 1: Ocean Acidification

by K. Hansen, Feb 22, 2022 in WUWT There have been a couple of mentions of the decline effect over the past month, mostly prompted by a recent paper that appeared in  PLOS BIOLOGY  authored by Jeff Clements, Josefin Sundin, Timothy Clark, and Fredrik Jutfelt titled “Meta-analysis reveals an extreme “decline effect” in the impacts … Continuer la lecture de The Decline Effect – Part 1: Ocean Acidification

Most Published Studies Exaggerated the Effects of Ocean Acidification – and Covid, Etc.

by J. Marohasy’sBlog, Feb 20, 2022 The concept of ocean acidification, and human-caused global warming more generally, could be described as containing a grain of truth embedded in a mountain of nonsense. Indeed, the projected large increase in atmospheric CO2 will at most cause a small reduction in pH – it will not turn the … Continuer la lecture de Most Published Studies Exaggerated the Effects of Ocean Acidification – and Covid, Etc.

Fishy Business: Alleged Fraud over Ocean Acidification Research, Reversal on Coral Extinction

by R. Alexander, June 28, 2021 in ScienceUnderAttack In the news recently have been two revelations about the sometimes controversial world of coral reef research. The first is fraud allegations against research claiming that ocean acidification from global warming impairs the behavior of coral reef fish. The second is an about-face on inflated estimates for … Continuer la lecture de Fishy Business: Alleged Fraud over Ocean Acidification Research, Reversal on Coral Extinction

Does ocean acidification alter fish behavior? Fraud allegations create a sea of doubt

by P. Homewood, May 7, 2021 in NotaLotofPeopleKnowThat When Philip Munday discussed his research on ocean acidification with more than 70 colleagues and students in a December 2020 Zoom meeting, he wasn’t just giving a confident overview of a decade’s worth of science. Munday, a marine ecologist at James Cook University (JCU), Townsville, was speaking … Continuer la lecture de Does ocean acidification alter fish behavior? Fraud allegations create a sea of doubt

Volcanic eruptions directly triggered ocean acidification during Early Cretaceous

by Northwestern University, Dec 21, 2020 in ScienceDaily Around 120 million years ago, the earth experienced an extreme environmental disruption that choked oxygen from its oceans. Known as oceanic anoxic event (OAE) 1a, the oxygen-deprived water led to a minor — but significant — mass extinction that affected the entire globe. During this age in … Continuer la lecture de Volcanic eruptions directly triggered ocean acidification during Early Cretaceous

Claim: Ocean acidification causing coral ‘osteoporosis’ on iconic reefs

by WOODS HOLE OCEANOGRAPHIC INSTITUTION, August, 28, 2020 in WUWT Scientists have long suspected that ocean acidification is affecting corals’ ability to build their skeletons, but it has been challenging to isolate its effect from that of simultaneous warming ocean temperatures, which also influence coral growth. New research from the Woods Hole Oceanographic Institution (WHOI) reveals … Continuer la lecture de Claim: Ocean acidification causing coral ‘osteoporosis’ on iconic reefs

When Exposed To Natural, Long-Term Extreme ‘Ocean Acidification’, Coral And Urchin ‘Persist’ And Even ‘Thrive’

by K. Richard, June 29, 2020 in NoTricksZone Marine species subjected to high CO2 extremes – 8,891 to 95,000 ppm – in their natural environments may not be adversely affected. They may even “thrive”. Earlier this year we highlighted a study that says coral reefs “thrive” near seafloor volcanic vents where CO2 concentrations reach 60,000 … Continuer la lecture de When Exposed To Natural, Long-Term Extreme ‘Ocean Acidification’, Coral And Urchin ‘Persist’ And Even ‘Thrive’

Study: No Evidence Ocean Acidification Harms Coral Reef Fish Behavior

by C. Idso, March10, 2020 in ClimateChangeDispatch Paper Reviewed: Clark, T.D., Raby, G.D., Roche, D.G., Binning, S.A., Speers-Roesch, B., Jutfelt, F. and Sundin, J. 2020. Ocean acidification does not impair the behavior of coral reef fishes. Nature 577: 370-375. In an incredibly important and revealing paper published in the journal Nature, Clark et al. (2020) write … Continuer la lecture de Study: No Evidence Ocean Acidification Harms Coral Reef Fish Behavior

Ocean acidification a big problem — but not for coral reef fish behavior

by Norwegian University of Science and Technology, Jan. 9, 2020 in WUWT A three-year, comprehensive study of the effects of ocean acidification challenges previous reports that a more acidic ocean will negatively affect coral reef fish behaviour. The study, conducted by an international coalition led by scientists from Australia and Norway, showed that coral reef fish … Continuer la lecture de Ocean acidification a big problem — but not for coral reef fish behavior

Analysis Finds Oceans Have Become LESS ‘Acidic’ With Rising CO2, Challenging The ‘Acidification’ Narrative

by K. Richard, February 14, 2019 in NoTricksZone A modest long-term (1800s-present) declining trend in ocean pH values predominantly occurred prior to 1930, or before anthropogenic CO2 emissions began rising precipitously. Since 1930, seawater pH trends have risen slightly, meaning sharply rising CO2 has been coincident with less, not more, ocean “acidification”   I Image Source … Continuer la lecture de Analysis Finds Oceans Have Become LESS ‘Acidic’ With Rising CO2, Challenging The ‘Acidification’ Narrative

Ocean Acidification Background Context

by ‘Guest Blogger’, December 23, 2018 in WUWT Obiter dictum. We acknowledge that seawater is basic and cannot truly acidify (pH<7). But that is a losing semantic quibble, not a winning skeptical argument. The generally accepted linguistic convention—for better or worse–is that lowering seawater pH means ‘acidification’. There is no doubt that adding dissolved CO2 … Continuer la lecture de Ocean Acidification Background Context

A Brachiopod’s Twelve-Decade Response to Ocean Acidification and Warming

by Cross et al., November 29, 2018 in CO2Science Paper Reviewed Cross, E.L., Harper, E.M. and Peck, L.S. 2018. A 120-year record of resilience to environmental change in brachiopods. Global Change Biology 24: 2262-2271. … In light of all their findings, Cross et al. conclude that “these rhynchonelliform brachiopods have therefore been unaffected in their … Continuer la lecture de A Brachiopod’s Twelve-Decade Response to Ocean Acidification and Warming

Réflexions sur l’acidification des océans

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 … Continuer la lecture de Réflexions sur l’acidification des océans

The Total Myth of Ocean Acidification

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 … Continuer la lecture de The Total Myth of Ocean Acidification

3 More New Papers Expose The Folly Of ‘Ocean Acidification’ Claims

by K. Richard, May 24, 2018 in NoTricksZone Scientists claim that the ocean’s global mean surface pH may have declined (i.e., became less alkaline and thus more “acidic”) by -0.08 in the last 265 years — from 8.13 during pre-industrial times to 8.05 today.  That’s an overall, long-term pH change rate of -0.0003 per year. … Continuer la lecture de 3 More New Papers Expose The Folly Of ‘Ocean Acidification’ Claims

The Resilience of a Coralline Red Algae to Ocean Acidification

by  Donald et al. 2017, in CO2Science from Géochim.Cosmochim.Acta The influence of pHsw on both pHcf and the calcification rate of Neogoniolithon is plotted in Figure 1 below. As indicated there, this coralline algal species is able to elevate its pHcf so as to increase its rate of calcification under moderate levels of ocean acidification … Continuer la lecture de The Resilience of a Coralline Red Algae to Ocean Acidification

The End Of The Ocean Acidification Scare For Corals

by McCulloch et al., 2017, October 2017,  in co2science Paper Reviewed: McCulloch, M.T., D’Olivo, J.P., Falter, J., Holcomb, M. and Trotter, J.A. 2017. Coral calcification in a changing world and the interactive dynamics of pH and DIC upregulation. Nature Communications 8: 15686, DOI:10.1038/ncomms15686 (…) The implications of the above findings are enormous, for they reveal that “pHcf upregulation occurs largely … Continuer la lecture de The End Of The Ocean Acidification Scare For Corals

Indirect Positive Effects of Ocean Acidification Can Overpower Sometimes Observed Direct Negative Effects

by S.D. Connell et al., 2017 in Current Biology (in CO2 Science) The increasing absorption of CO2 and associated decline in seawater pH values is thought to pose direct harm to marine life in the decades and centuries to come by affecting rates of survival, calcification, growth, development and/or reproduction. However, as ever more pertinent … Continuer la lecture de Indirect Positive Effects of Ocean Acidification Can Overpower Sometimes Observed Direct Negative Effects

Densely Aggregated Corals Maintain Calcification Under Ocean Acidification Conditions

by N.R. Evensen and P.J. Edmunds, 2017, J. Exp. Biology Regardless of the actual mechanism responsible for the densely aggregated corals to maintain calcification rates in the face of ocean acidification, the study of Evensen and Edmunds, in their words, offers “a compelling case for differential densities of branching coral colonies (i.e. aggregation types) mediating … Continuer la lecture de Densely Aggregated Corals Maintain Calcification Under Ocean Acidification Conditions

L’acidification des océans : causes anthropiques versus variabililité naturelle

Usbek, 13 avril 2017 L’acidification n’est pas une simple réponse statique à l’augmentation de la concentration de CO2 dans l’atmosphère : c’est la résultante de processus biologiques et physico-chimiques qui entraînent une répartition inégale du carbone sur la verticale de l’océan. D’autre part la vie océanique a survécu à des niveaux beaucoup plus élevés de … Continuer la lecture de L’acidification des océans : causes anthropiques versus variabililité naturelle

The Decline Effect – Part 2: How Does This Happen?

by K. Hansen, Feb 29, 2022 in WUWT What exactly is the decline effect?  Is it the fact that certain scientifically discovered effects decline over time the more they are studied and researched? Almost, but not really.  The Wiki has this definition for us: “The decline effect may occur when scientific claims receive decreasing support … Continuer la lecture de The Decline Effect – Part 2: How Does This Happen?

Dire Warnings Of A Climate Collapse By 2020 Made By Media In 2007 Get Postponed Again

by P. Gosselin, Feb 18, 2022 in NoTrickZone In 2007, in the wake of the 4th IPCC report and Al Gore’s An Inconvenient Truth, Germany’s most widely circulated daily, Bild, reported: There are only 13 years left to save our earth! Can the climate catastrophe still be prevented? There is only little time left to … Continuer la lecture de Dire Warnings Of A Climate Collapse By 2020 Made By Media In 2007 Get Postponed Again