Posts Tagged ‘ocean acidification’

New Papers at SPPI

Monday, August 17th, 2015

Source:  SPPI

Effects of Ocean Acidification and Warming on Corals (Laboratory Studies)

Most of the ocean acidification research conducted to date has focused solely on the biological impacts of declining seawater pH. Fewer studies have investigated the interactive effects of ocean acidification and temperature. This summary examines what has been learned in several of such studies for coral reefs, as reported in various laboratory-based studies on the topic. Contrary to what is widely assumed and reported, the studies reviewed here collectively reveal that many corals will remain unaffected by rising temperatures and atmospheric CO2 concentrations. Furthermore, in contrast to projections, some will likely experience growth and performance benefits.

Antarctic Sea Ice Trends

Noting that Antarctic sea ice may show high sensitivity to any anthropogenic-induced increase in temperature, Watkins and Simmonds (2000)1 analyzed temporal trends in different measures buy prednisone for dogs uk. cheapest rates, prednisone purchase no prescription ., best prices for all customers! prednisone price target. free delivery  of the sea ice that surrounds Antarctica, using Special Sensor Microwave Imager data obtained from the Defense Meteorological Satellite Program for the nine-year period December 1987-December 1996, in search of the suspected signal. But contrary to what one would expect on the basis of climate model simulations, and especially in light of what climate alarmists of the day described as the unprecedented warming of the past quarter-century, the two scientists observed statistically significant increases in both sea ice area and extent; and when they combined their results with those of the preceding nine-year period (1978-1987), both parameters continued to show increases over that expanded time period. In addition, they found that the 1990s also experienced increases in the length of the sea-ice season.

Historic Trends in Global Sea Level

Periodically, individual scientists and groups of scientists analyze global sets of sea level data to see if there is any indication of a dramatic increase in the mean rate-of-rise of the global ocean surface in response to the supposedly unprecedented warming of the planet over the course of the 20th century and the initial phase of buy estrace (estradiol) without prescription purchase prescription medications online. the 21st century, which latter phenomenon the world’s climate alarmists claim should be accelerating global sea level rise and leading to catastrophic coastal flooding throughout the world. Hence, we here provide a brief summary of the findings of several such studies that we have reviewed over the past several years.

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Put the acid on Great Barrier Reef doomsayers

Monday, April 13th, 2015

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by PATRICK MOORE

There is nothing more symbolic of the natural beauty of Australia than the Great Barrier Reef.

This makes it a powerful emotional tool to strike fear into the hearts of citizens. The “ocean acidification” hypothesis, that corals and shellfish will die due to higher levels of carbon dioxide dissolved in the sea, is often used to stoke those fears.

Here’s why I don’t believe there is a shred of evidence to support these claims.

When the slight global warming that occurred between 1970 and 2000 came to a virtual standstill, the doomsayers adopted ­“climate change”, which apparently means all extreme weather events are caused by human emissions of CO2.

Cold, hot, wet, dry, wind, snow and large hailstones are attributed to humanity’s profligate use of fossil fuels. But the pause in global warming kept on and became embarrassing around 2005. (more…)

Monday, April 13th, 2015

Source: SPPI buy v excel generic name of amoxil at retailpharma we providing buy v excel generic name of amoxil online, v excel products, v excel herbal online,  idso3

Effects of Ocean Acidification on Marine Crustaceans

As the air’s CO2 content rises in response to ever-increasing anthropogenic CO2 emissions, and as more and more carbon dioxide therefore dissolves in the surface waters of the world’s oceans, theoretical reasoning suggests the pH values of the planet’s oceanic waters should be gradually dropping. The IPCC and others postulate that this chain of events, commonly referred to as ocean acidification, will cause great harm — and possibly death — to marine life in the decades and centuries to come. However, as ever more pertinent evidence accumulates, a much more optimistic viewpoint is emerging. Such optimism is the focus of this summary examining the effects of ocean acidification on crustaceans.

Effects of Ocean Acidification on Marine Bivalves

As the air’s CO2 content rises in response to ever-increasing anthropogenic CO2 emissions, and as more and more carbon dioxide therefore dissolves in the surface waters of the world’s oceans, theoretical reasoning suggests the pH values of the planet’s oceanic waters should be gradually dropping. The IPCC and others postulate that this chain of events, commonly referred to as ocean acidification, will cause great harm — and possibly death — to marine life in the decades and centuries to come. However, as ever more pertinent evidence accumulates, a much more optimistic viewpoint is emerging. Such optimism is the focus of this summary examining the effects of ocean acidification on bivalves. buy zyban online uk zyban reviews (more…)

June 2014 Archive of Scientific Literature Reviews

Tuesday, July 15th, 2014

Source:  NIPCC
redwood trees

http://www.nipccreport.org/issues/2014/jun.html

Old Trees: The Bigger They Are, The More Carbon They Sequester (3 Jun 2014)
New data overturn an old concept, revealing that “rapid growth in giant trees is the global norm” and “it appears to hold regardless of competitive environment”… Read More (more…)

Juvenile Barnacles in a Significantly Warmed and Acidified Ocean

Friday, December 20th, 2013

Source:  CO2 Science barnicles

Reference
Pansch, C., Nasrolahi, A., Appelhans, Y.S. and Wahl, M. 2013. Tolerance of juvenile barnacles (Amphibalanus improvisus) to warming and elevated pCO2Marine Biology 160: 2023-2035.

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The authors say that Kiel Fjord in the western Baltic Sea “is characterized by strong fluctuations in water pCO2 and pH,” and that annual mean pCO2 values of about 700 µatm can be measured there today, “with occasional pCO2 peaks of up to ~2,300 µatm (Thomsen  cost for prednisone without insurance buy prednisone 10mg online buy prednisone online et al., 2010).” And they therefore wondered how juvenile barnacles (Amphibalanus improvisus) would fare there in the future, as the air’s CO2 content continues to rise and if temperatures rise along with it. (more…)

Idso’s Rebuttal to Scott Doney’s Senate Testimony on “Ocean Acidification”

Sunday, July 21st, 2013

Source: Climate Etc.  dec 20, 2014 – shop with us for cheap fluoxetine online medications you need without bacteria cheapest hydrochloride online buying buy fluoxetine order acid_test

by Judith Curry

Scott Doney’s testimony

Excerpts from Doney’s recent congressional testimony [link]

Rebuttal 

Craig Idso has written comprehensive rebuttal to the NRDC film “Acid Test: The Global Challenge of Ocean Acidification.” [link]

So what’s the story here? Are coral reefs really in their last decades of existence? Will the shells of other calcifying marine life also dissolve away during our lifetimes? The NRDC film certainly makes it appear that such is the case; but a little scientific sleuthing reveals nothing of substance in this regard. In fact, even a cursory review of the peer-reviewed scientific literature reveals that an equally strong case – if not a more persuasive one – can be made for the proposition that the ongoing rise in atmospheric CO2 concentration will actually prove a boon to calcifying marine life. Sadly, however, the NRDC chose to present an extreme one-sided, propagandized view of ocean acidification; and in this critique we present the part of the story that they clearly don’t want you to know.

[25 pages of text, 13 pages of references]

From the Conclusions: (more…)

Misguided PBS spreads acid ocean alarm

Thursday, December 20th, 2012

Source:  Washington Times

http://www.amazon.com/CO2-Global-Warming-Coral-Reefs/dp/0971484589/ref=sr_1_1?ie=UTF8&qid=1356024440&sr=8-1&keywords=craig+idso

by Steve Gorham

On December 5, the PBS News Hour showed a segment titled “Endangered Coral Reefs Die as Ocean Temperatures Rise and Water Turns Acidic,” with Hari Sreenivasan reporting. The story discussed the recent loss of Florida coral reefs and the possible impact on recreation and tourism if reef degradation continues. But PBS wrongly told viewers that reef degradation was due to warmer ocean temperatures and “ocean acidification,” both allegedly caused by human carbon dioxide emissions. Sreenivasan concluded with, “Time that maybe is running out for coral reefs in Florida and elsewhere.”

Scientists, environmental groups, and the United Nations promote the fear of ocean acidification. According to claims, man-made emissions of carbon dioxide are absorbed by the oceans and converted into carbonic acid, thereby changing the chemical balance of the oceans. The basic concept of acidification is correct, but hugely exaggerated. (more…)

How Ocean Acidification and Warming Impact Predator-Prey Relationships of Calcifying Organisms

Saturday, September 1st, 2012

Source:  CO2 Science

Reference
Landes, A. and Zimmer, M. 2012. Acidification and warming affect both a calcifying predator and prey, but not their interaction. Marine Ecology Progress Series  buy zoloft online, zoloft washout, washout period for zoloft. positive reviews of running delayed ejaculation on zoloft changing paroxetine buy sertraline mexico . can drinking on kill you how to get off zoloft deutsch and emotional  450: 1-10.

Background
The authors write that “both ocean warming and acidification have been demonstrated to affect the growth, performance and reproductive success of calcifying invertebrates.” However, they say that “relatively little is known regarding how such environmental change may affect interspecific interactions.” (more…)

Acidification Effects on Deep-Sea Corals and Other Megabenthos

Tuesday, August 21st, 2012

Source:  CO2 Science

http://tbsecosystemsold.wikispaces.com/Coral+Reefs

Reference
Thresher, R.E., Tilbrook, B., Fallon, S., Wilson, N.C. and Adkins, J. 2011. Effects of chronic low carbonate saturation levels on the distribution, growth and skeletal chemistry of deep-sea corals and other seamount megabenthos. Marine Ecology Progress Series 442: 87-99.

Background
The authors write that “ocean acidification has been predicted to reduce the ability of marine organisms to produce carbonate skeletons, threatening their long-term viability and severely impacting marine ecosystems,” noting in this regard that “corals, as ecosystem engineers, have been identified as particularly vulnerable.” However, they state that “these predictions are based primarily on modeling studies and short-term laboratory exposure to low-carbonate conditions.” And they therefore logically add that “their relevance to long-term exposure in the field and the potential for ecological or evolutionary adjustment are uncertain.” (more…)

Effects of Low pH on Early Life Stages of Atlantic Herring

Monday, August 20th, 2012

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Reference
Franke, A. and Clemmesen, C. 2011. Effect of ocean acidification on early life stages of Atlantic herring (Clupea harengus now buying discount prozac so easy. you can get generic cheap prozac without a prescription online . prozac no prescription needed. L.). Biogeosciences 8: 3697-3707.

According to Franke and Clemmesen (2011), “since the recruitment of fish seems to be determined during the early life stages (Koester et al., 2003; Houde, 2008), knowledge of the factors influencing growth and survival rates of these stages are of great importance in fisheries science.” And they add, in this regard, that “early life history stages even of the more tolerant taxa are assumed to be most susceptible to ocean acidification (Raven et al., 2005; Melzner et al., 2009).” But is this latter assumption correct? (more…)

What is the Best Frame of Reference for Evaluating the Biological Consequences of Ocean Acidification?

Tuesday, June 19th, 2012

http://www.weforanimals.com/free-pictures/sea/sea-1.htm

Source:  CCR

Reference
Stumpp, M., Wren, J., Melzner, F., Thorndyke, M.C. and Dupont, S.T. 2011a. CO2 induced seawater acidification impacts sea urchin larval development I: Elevated metabolic rates decrease scope for growth and induce developmental delay. Comparative Biochemistry and Physiology, Part A 160 buy amoxil online, will amoxicillin treat a throat infection, will amoxicillin work bladder infection. : 331-340.

Stumpp et al. (2011a) evaluated the impacts of elevated seawater pCO2 (1264 ppm vs. 375 ppm) on the early development of, and the larval metabolic and feeding rates of, a model marine organism: Strongylocentrotus purpuratus, commonly known as the purple sea urchin. This was done via a protocol where growth and development were assessed daily, for a period of three weeks, in terms of total body length, body rod length, postoral rod length and posterolateral rod length, as well as mortality and feeding and metabolic rates. So what did their research show? (more…)

The Impact of Ocean Acidification and Warming on a Calcifying Predator-Prey Relationship

Friday, June 15th, 2012

Source:  CCR

Reference clomid quintuplets cheap clomid
Landes, A. and Zimmer, M. 2012. Acidification and warming affect both a calcifying predator and prey, but not their interaction. can i get valtrex online. buy valtrex ( valaciclovir ). buy valtrex ( valaciclovir ). Marine Ecology Progress Series 450 baclofen mg, cheap lioresal, buy cheap baclofen, lioresal mg, purchase baclofen , although the great koch has told us recently that he has lioresal price  : 1-10.

According to Landes and Zimmer (2012), “both ocean warming and acidification have been demonstrated to affect the growth, performance and reproductive success of calcifying invertebrates.” However, they say that “relatively little is known regarding how such environmental change may affect interspecific interactions.” (more…)

Another Ocean “Acidification” Scare

Thursday, January 26th, 2012

Source: NIPCC

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Schram, J.B., McClintock, J.B., Angus, R.A and Lawrence, J.M. 2011. Regenerative capacity and biochemical composition of the sea star Luidia clathrata (Say) (Echinodermata: Asteroidea) under conditions of near-future ocean acidification. Journal of Experimental Marine Biology and Ecology 407: 266-274

According to Schram et al. (2011), “echinoderms produce their skeletal components from magnesium-rich calcite, a form of calcite that is even more vulnerable to ocean acidification than aragonite (Andersson et al., 2008; Gayathri top quality medications. price of oral prednisone . approved pharmacy, prednisone generic deltasone. et al., 2007),” and, therefore, they say that “an understanding of the prospective impacts of ocean acidification on internal skeletal structures of echinoderms is important, as the presence of an internal skeletal structure is unique in comparison to the majority of invertebrates studied to date in ocean acidification research.” The four researchers thus proceded to conduct their own experiment to add to that knowledge. (more…)

Taking Fears of Acid Oceans With a Grain of Salt

Saturday, January 7th, 2012

Source:  WSJ

[SPPI Note:  More in-depth papers on this issue can be found at the SPPI website:

C02 Science’s Ocean Acidification Database

Quantifying the Effects of Ocean Acidification on Marine Organisms

Effects of Ocean Acidification on Marine Ecosystems

Answers to a Fisherman’s Testimony about Ocean Acidification

EPA’s Role in Protecting Ocean Health Should Focus on the “Here-and-Now” Threats

See also CO2 Science website for reviewed papers on the topic 

“Once again, therefore, we have another situation where the doom-and-gloom prognostications of the world’s climate alarmists have been made without regard to the full spectrum of important phenomena that come to bear upon the issue in question, and where the conclusions they reach are found to be far more uncertain and much less extreme than what they portray them to be. Thus, it can be appreciated that the climate-alarmist horror stories of impending extinctions of earth’s marine calcifying organisms due to a CO2-induced decrease in seawater pH are merely that:stories, without any basis in fact.”

***************************

WSJ text beings here:

Coral reefs around the world are suffering badly from overfishing and various forms of pollution. Yet many experts argue that the greatest threat to them is the acidification of the oceans from the dissolving of man-made carbon dioxide emissions.

The effect of acidification, according to J.E.N. Veron, an Australian coral scientist, will be “nothing less than catastrophic…. What were once thriving coral gardens that supported the greatest biodiversity of the marine realm will become red-black bacterial slime, and they will stay that way.” (more…)

A Deep Sea Mystery

Friday, July 1st, 2011

by Ben Pile

Just when you thought it was safe to go back in the water…

World’s oceans in ‘shocking’ decline

buy feb 4, 2010 – where to buy prozac in canada how much does prozac sell for on the streets http://fiah.webs.com/apps/profile/114031547/# generic -zoloft- northstar – what is does generic prozac cause weight gain cost of fluoxetine fucidin online baclofen without prescription, buy baclofen no prescription – abav.be. ndc pump refill kit baclofen le dernier verre side effects of baclofen medication . Warns Richard Black at the BBC.

The oceans are in a worse state than previously suspected, according to an expert panel of scientists.

In a new report, they warn that ocean life is “at high risk of entering a phase of extinction of marine species unprecedented in human history”.

They conclude that issues such as over-fishing, pollution and climate change are acting together in ways that have not previously been recognised.

The impacts, they say, are already affecting humanity.

The panel was convened by the International Programme on the State of the Ocean (IPSO), and brought together experts from different disciplines, including coral reef ecologists, toxicologists, and fisheries scientists.

Call me a cynic, but I no longer take claims about ‘expert panel of scientists’ at face value. Sadly, Richard Black of the BBC does. (more…)