« Donderdag Veggiedag Durbledag Greeniedag Daggiedaggiedo | Main | Private Solutions to Public Problems »

WWF Coral Scare

Climate change 'killing Coral Triangle' - Telegraph

Rising water temperatures, sea levels and acidity in the vast region threaten to destroy reefs in Southeast Asia's Coral Triangle, a region labelled the ocean's answer to the Amazon rainforest, the WWF report said. Saving the Coral Triangle will require countries to commit to deep cuts in carbon gas emissions when they gather for global climate talks in the Danish capital Copenhagen in December to work out a successor agreement to the Kyoto Protocol.
Cuts of 80 per cent below 1990 levels by 2050 would be needed to avert the worst effects...
Collapse of the reefs would send food production in the region plummeting by 80 percent and imperil the livelihoods of over 100 million people

Two minutes on Google finds this slightly more impressive paper...

CO2, GLOBAL WARMING AND CORAL REEFS:
by Dr. Craig D. Idso (.pdf)

...The persistence of coral reefs through geologic time – when temperatures were as much as 10-15°C warmer than at present, and atmospheric CO2 concentrations were 2 to 7 times higher than they are currently – provides substantive evidence that these marine entities can successfully adapt to a dramatically changing global environment.
Thus, the recent die-off of many corals cannot be due solely, or even mostly, to global warming or the modest rise in atmospheric CO2 concentration over the course of the Industrial Revolution.
The 18- to 59-cm warming-induced sea level rise that is predicted for the coming century by the IPCC – which could be greatly exaggerated if predictions of CO2-induced global warming are wrong – falls well within the range (2 to 6 mm per year) of typical coral vertical extension rates, which exhibited a modal value of 7 to 8 mm per year during the Holocene and can be more than double that value in certain branching corals. Rising sea levels should therefore present no difficulties for coral reefs. In fact, rising sea levels may actually have a positive effect on reefs, permitting increased coral growth in areas that have already reached the upward limit imposed by current sea levels.
The rising CO2 content of the atmosphere may induce changes in ocean chemistry (pH) that could slightly reduce coral calcification rates; but potential positive effects of hydrospheric CO2 enrichment may more than compensate for this modest negative phenomenon.
Theoretical predictions indicate that coral calcification rates should decline as a result of increasing atmospheric CO2 concentrations by as much as 40% by 2100. However, real-world observations indicate that elevated CO2 and elevated temperatures are having just the opposite effect.
In light of the above observations, and in conjunction with all of the material presented in this review, it is clear that climate-alarmist claims of impending marine species extinctions due to increases in both temperature and atmospheric CO2 concentration are not only not supported by real-world evidence, they are actually refuted by it.

Comments

Coral seems to be the polar bear of the southern hemisphere; thought of as pretty, cuddly and eternal.

I don't know a lot about coral but I can be fairly sure it hasn't been around since day one. There must have been a time when the world turned despite not having the benefit of the great barrier reef.

If (which I do not believe for one moment) the choice is between (i) keeping those who live in comfort comfortable & getting as many as possible into the comfort zone and (ii) preserving coral, it's no contest. Bye bye coral, it's been nice knowing you.

I like FB's comment above.

I think the great general public are rather weary of scare stories, and that green credibility is now paper thin. It's a bit like the perennial red wine causes cancer/extends your life confusion, the planet's meant to be warming but everywhere there's unseasonal amazing cold. Check the local Mt Maunganui freak ice storm on my blog yesterday.

http://mickysmuses.blogspot.com/2009/05/global-warming-hits-my-home-town.html

Thank God for the blogosphere. If it was just left up to the MSM we'd be panicked into turning off the mains and taking to our tandems.

Note how the writer carefully tips his hat towards the recognised theological conventions "the warming-induced sea level rise", etc etc.

No doubt he has to say all that in order not to be lynched by the warmists.

But he knows, and we know, that there is no warming at present - rather, the world is cooling - and that sea-level is increasing very much more slowly than the alarmists predicted (I think they just ignore this, as you would expect), so there is even less cause for concern, in fact probably none at all.

But as Machiavelli pointed out, you need to keep people scared, in order to maintain your power over them.

Two minutes is a long time to hold your breath but insufficient to find a real scientific article on coral reefs.
Craig Idso is a familiar climate change denialist, as a check of Sourcewatch & ExxonSecrets websites show.
His family has made a living peddling corrupt science for Exxon-Mobil (Esso) and other fossil fuel companies.
Idso's training and work are in agriculture and geography. He has no expertise and zero publication record in seas or reefs. But of course, that makes him the perfect 'expert' for know-nothings. He is paid by vested interests to promote the false and profitable company line.

Corals reefs are vulnerable systems and humans are known to be damaging them. Their disappearance would cost tens of billions in lost productivity and use. They are irreplaceable in the short term and cannot adapt and evolve fast enough to preserved their diversity. In contrast to the know-nothing approach, a recent review of coral reef health was published in Science. It summarizes a review of reefs around the world and the are in trouble due to global warming, overfishing and pollution. It is only one of many recent studies describing the problem.

A third of the world's reef-building coral species are facing extinction.
http://news.bbc.co.uk/1/hi/sci/tech/7498502.stm

"it is clear that climate-alarmist claims of impending marine species extinctions due to increases in both temperature and atmospheric CO2 concentration are not only not supported by real-world evidence, they are actually refuted by it."

could also read:

"it is clear that all climate-alarmist claims are not only not supported by real-world evidence, they are actually refuted by it."

Re: Jay Alt

Overfishing, over tourism and pollution may have some effect on corals but climate change will have absolutely none whatsoever.

Corals evolved millions of years ago and have survived throughout hot times, normal times, and the current ice age (as well as throughout the various glacials and inter-glacials of this current ice age). In the past few million years sea levels have risen hundreds of metres and receded by similar amounts.

CO2 concentrations throughout the lifetimes of the current coral species range from the current low to thousands of parts per million.

Coral does best in times of high CO2 as their symbionts (algae) are able to more efficiently produce food due to CO2 fertilisation.

Sudden changes of temperatures may, however, cause coral bleaching - but this is not to be confused with death. Coral bleaching is simply the corals expelling their algal symbionts (thus giving rise to white corals as it is the algae that give coral its colour) and replacing them with different types of algae that are work more efficiently at higher temperatures. These sudden changes of temperatures are caused, in modern times, by shifts in oceanic currents.

So really corals have nothing to worry about. Indeed if global warming is happening we should be happy as warmer times are the best of times for life on earth and the current ice age ending would be good for almost all life on the planet.

Post a comment