Archive for the ‘The Perfect Storm’ Category

When can we expect extremely high surface temperatures?

Thursday, July 31st, 2008

Sure glacier melt, sea level rise, extreme drought, and species loss get all the media attention — they are the Britney Spears, Paris Hilton, and Barack Obama of climate impacts. But what about good old-fashioned sweltering heat? How bad will that be? Two little-noticed studies — one new, one old — spell out the grim news.

Bottom line: By century’s end, extreme temperatures of up to 122°F would threaten most of the central, southern, and western U.S. Even worse, Houston and Washington, DC could experience temperatures exceeding 98°F for some 60 days a year.

The peak temperature analysis comes from a Geophysical Research Letters paper published two weeks ago that focused on the annual-maximum “once-in-a-century” temperature. Researchers looked at the case of a (mere) 700 ppm atmospheric concentrations of CO2, the A1b scenario, with total warming of about 3.5°C by century’s end. The key scientific point is that “the extremes rise faster than the means in a warming climate.”

More… (click through to see a great temperature map)

Ivory poaching at critical levels: Elephants on path to extinction by 2020?

Thursday, July 31st, 2008

African elephants are being slaughtered for their ivory at a pace unseen since an international ban on the ivory trade took effect in 1989. But the public outcry that resulted in that ban is absent today, and a University of Washington conservation biologist contends it is because the public seems to be unaware of the giant mammals’ plight.The elephant death rate from poaching throughout Africa is about 8 percent a year based on recent studies, which is actually higher than the 7.4 percent annual death rate that led to the international ivory trade ban nearly 20 years ago, said Samuel Wasser, a UW biology professor.

But the poaching death rate in the late 1980s was based on a population that numbered more than 1 million. Today the total African elephant population is less than 470,000.

“If the trend continues, there won’t be any elephants except in fenced areas with a lot of enforcement to protect them,” said Wasser.

He is lead author of a paper in the August issue of Conservation Biology that contends elephants are on a course that could mean most remaining large groups will be extinct by 2020 unless renewed public pressure brings about heightened enforcement.

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Could we start industrial society from scratch today?

Tuesday, July 29th, 2008

– An excellent article over on Resource Insights Blog. Kurt Cobb writes some good stuff and I’ve had his Blog listed in my Blogroll for some time.

– The point he’s making here is one I’ve thought about for years. Though I would have said before that we might rise and crash two or three times in succession until we figured out how to either establish a steady-state relationship with the biosphere or until the resources were too depleted to support another rise.

– After reading his piece, I think I’m in the “we have just one change to get this right” camp now.

– This sort of thinking has been around for awhile. Here’s a quote from Sir Fred Hoyle in Of Men and Galaxies, 1964:

It has often been said that, if the human species fails to make a go of it here on the Earth, some other species will take over the running. In the sense of developing intelligence this is not correct. We have or soon will have, exhausted the necessary physical prerequisites so far as this planet is concerned. With coal gone, oil gone, high-grade metallic ores gone, no species however competent can make the long climb from primitive conditions to high-level technology. This is a one-shot affair. If we fail, this planetary system fails so far as intelligence is concerned. The same will be true of other planetary systems. On each of them there will be one chance, and one chance only.

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By Kurt Cobb

Could we start industrial society from scratch today? The answer is probably not. While such a question seems merely hypothetical, its answer has important implications regarding the prospects for a sustainable industrial future.

The reason it would be so difficult to start an industrial society from scratch today is that most of the natural resources associated with advanced societies have been drawn down to a point where it would be difficult to extract what’s left without an up-and-running industrial system. It is worth quoting at length Harrison Brown, author of “The Challenge of Man’s Future,” writing on this point in 1954:

Our ancestors had available large resources of high-grade ores and fuels that could be processed by the most primitive technology–crystals of copper and pieces of coal that lay on the surface of the earth, easily mined iron, and petroleum in generous pools reached by shallow drilling. Now we must dig huge caverns and follow seams ever further underground, drill oil wells thousands of feet deep, many of them under the bed of the ocean, and find ways of extracting the leanest ores–procedures that are possible only because of our highly complex modern techniques, and practical only to an intricately mechanized culture which could not have been developed without the high-grade resources that are so rapidly vanishing.

As our dependence shifts to such resources as low-grade ores, rock, seawater, and the sun, the conversion of energy into useful work will require ever more intricate technical activity, which would be impossible in the absence of a variety of complex machines and their products–all of which are the result of our intricate industrial civilization, and which would be impossible without it. Thus, if a machine civilization were to stop functioning as the result of some catastrophe, it is difficult to see how man would again be able to start along the path of industrialization with the resources that would then be available to him.

What Brown is really describing is a lack of resilience in modern industrial civilization. It lacks the redundancy built into agrarian cultures because the whole system has become so specialized and interdependent. For example, rare earth minerals are critical to the functioning of modern electronics, in the making of strong magnets useful in such things as hybrid cars and as catalysts in chemical processing. Some 90 percent of these elements currently come from China. Any cutoff could prove difficult for the rest of the world. There are other known deposits of rare earth elements, but it would take time to develop them and start up production.

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China loses track of 121 tons of ivory

Thursday, July 24th, 2008

– And we wonder why species are going extinct? Humans are surely a scourge on the Earth in so far as the other species who live here are concerned.

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UNITED NATIONS – China’s government lost track of 121 tons of elephant ivory over a dozen years that probably were sold on illegal markets, according to a previously undisclosed Chinese report to UN regulatory officials.

The “shortfall” in ivory described in the document between 1991 and 2002 – equal to the tusks from about 11,000 dead elephants – could provide fodder for representatives of a UN accord to reject China’s attempt next week to gain permission to import more ivory.

“We have not been able to account for the shortfall through the sale of legal ivory by the selected selling sites in the country,” Chinese officials reported in 2003 to the Swiss-based UN Convention on International Trade in Endangered Species of Wild Fauna and Flora, or CITES. “This suggests a large amount of illegal sale of the ivory stockpile has taken place.”

AP obtained the Chinese report from the Environmental Investigation Agency, a watchdog group based in Washington and London. EIA also has compiled a briefing for nations that signed on to CITES to try to prevent China from gaining permission to trade ivory at a CITES meeting in Geneva, Switzerland next week.

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How To Power The Entire Country With Renewable Energy: Fun With Maps Edition

Thursday, July 24th, 2008

– Excellent post over on The Sietch Blog replete with great maps showing the abundance of the difference types of renewable energy across the U.S.    Highly recommended.

Click here to see the article: 

Mexican Resorts Destroying Mangroves, Dooming Fisheries

Wednesday, July 23rd, 2008

The loss of Mexico‘s coastal mangrove forests to development is threatening the country’s multimillion-dollar fishing industry, according to a new study.

Around Mexico’s Gulf of California—between Baja California peninsula and the west coast of the mainland—mangroves are being destroyed to make way for high-end tourism resorts, marinas, and controversial industrial shrimp farms.

The government has overvalued such development and grossly undervalued the vital role mangroves play in supporting the region’s U.S. $19-million-dollar fishing industry, the report said.

The Gulf of California harbors more than a hundred fish species, 30 percent of which depend on mangroves for survival.

In particular, the roots of the saltwater forests serve as sanctuaries and nurseries for commercial fish species such as snapper, snook, and mullet.

The study, led by researchers at the Scripps Institution of Oceanography at the University of California, San Diego, was published this week in the journal Proceedings of the National Academy of Sciences.

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Warming world ‘drying wetlands’

Wednesday, July 23rd, 2008

More than 700 scientists are attending a major conference to draw up an action plan to protect the world’s wetlands.

Organisers say a better understanding of how to manage the vital ecosystems is urgently needed.

Rising temperatures are not only accelerating evaporation rates, but also reducing rainfall levels and the volume of meltwater from glaciers.

Although only covering 6% of the Earth’s land surface, they store up to an estimated 20% of terrestrial carbon.

Co-organised by the UN University and Brazil’s Universidade Federal de Mato Grosso, the five-day Intecol International Wetlands Conference in Cuiaba, Brazil, will examine the links between wetlands and climate change.

“Humanity in many parts of the world needs a wake-up call to fully appreciate the vital environmental, social and economic services wetlands provide,” said conference co-chairman Paulo Teixeira.

These included absorbing and holding carbon, regulating water levels and supporting biodiversity, he added.

Konrad Osterwalder, rector of the UN University, said that people in the past had viewed the habitats as a problem, which led to many being drained.

“Yet wetlands are essential to the planet’s health,” he explained. “With hindsight, the problems in reality have turned out to be the draining of wetlands and other ‘solutions’ we humans devised.”

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Solar Thermal Power Coming to a Boil

Tuesday, July 22nd, 2008

Jonathan G. Dorn

After emerging in 2006 from 15 years of hibernation, the solar thermal power industry experienced a surge in 2007, with 100 megawatts of new capacity coming online worldwide. During the 1990s, cheap fossil fuels, combined with a loss of state and federal incentives, put a damper on solar thermal power development. However, recent increases in energy prices, escalating concerns about global climate change, and fresh economic incentives are renewing interest in this technology.

Considering that the energy in sunlight reaching the earth in just 70 minutes is equivalent to annual global energy consumption, the potential for solar power is virtually unlimited. With concentrating solar thermal power (CSP) capacity expected to double every 16 months over the next five years, worldwide installed CSP capacity will reach 6,400 megawatts in 2012—14 times the current capacity. (See data.)

Unlike solar photovoltaics (PVs), which use semiconductors to convert sunlight directly into electricity, CSP plants generate electricity using heat. Much like a magnifying glass, reflectors focus sunlight onto a fluid-filled vessel. The heat absorbed by the fluid is used to generate steam that drives a turbine to produce electricity. Power generation after sunset is possible by storing excess heat in large, insulated tanks filled with molten salt. Since CSP plants require high levels of direct solar radiation to operate efficiently, deserts make ideal locations.

Two big advantages of CSP over conventional power plants are that the electricity generation is clean and carbon-free and, since the sun is the energy source, there are no fuel costs. Energy storage in the form of heat is also significantly cheaper than battery storage of electricity, providing CSP with an economical means to overcome intermittency and deliver dispatchable power.

The United States and Spain are leading the world in the development of solar thermal power, with a combined total of over 5,600 megawatts of new capacity expected to come online by 2012. Representing over 90 percent of the projected new capacity by 2012, the output from these plants would be enough to meet the electrical needs of more than 1.7 million homes.

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Fall in tiny animals a ‘disaster’

Tuesday, July 22nd, 2008

Experts on invertebrates have expressed “profound shock” over a government report showing a decline in zooplankton of more than 70% since the 1960s.

The tiny animals are an important food for fish, mammals and crustaceans.

Figures contained in the Department for Environment Food and Rural Affairs (Defra) document, Marine Programme Plan, suggested a fall in abundance.

Charity Buglife said it could be a “biodiversity disaster of enormous proportions”.

They said it could have implications for creatures all the way up the food chain, from sand eels to the seabirds, such as puffin, which feed on the fish.

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Tropical Rain Forests: Bad to Worse

Monday, July 21st, 2008

Pushed from center stage by the expected record arctic ice and permafrost melt, tropical rain forest destruction has been elbowing its way back through the smoke and into view. Papua New Guinea’s rain forests disappearing faster than thought is one such look:

Previously, the forest loss was estimated at 139,000 hectares per year between 1990 and 2005. But now?

Using satellite images to reveal changes in forest cover between 1972 and 2002…Papua New Guinea (PNG) lost more than 5 million hectares of forest over the past three decades…Worse, deforestation rates may be accelerating, with the pace of forest clearing reaching 362,000 hectares (895,000 acres) per year in 2001. The study warns that at current rates 53 percent of the country’s forests could be lost or seriously degraded by 2021.

Stunning. Adding insult to injury – the good news as reported last Thursday in Malaysia didn’t last long:

PM: No clearing of forests for oil palm plantations

Abdullah, who is also Finance Minister, said the existing oil palm plantations were enough to cater to current demands and there was no need for the opening of new plantations at the moment.

Fast forward THREE DAYS:

Sarawak to open more land for oil palm

Sarawak will continue to open up more land for oil palm plantations, Chief Minister Tan Sri Abdul Taib Mahmud said here yesterday. He said this would not go against the prime minister’s directive on the clearing of land for oil palm plantation as it did not apply to the state.

So much for Malaysia lending a hand.

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