Archive for the ‘Biodiversity Loss’ Category

How the world’s oceans are running out of fish

Saturday, August 9th, 2008

Ninety years of overfishing has brought us to the brink of ecological catastrophe and deprived millions of their livelihoods. Scientific guidelines are ignored and catches grow ever larger. Alex Renton explains why the international community has failed to act.

It is early morning in Barcelona’s La Boqueria market and the fish stallholders are setting out their wares. Mounds of pink and grey glisten down the dim alleys, as shoppers and tourists peer at the fins and tentacles. It is not like any fish shop in Britain. Some stalls sell five different species of squid and cuttlefish, half a dozen types of shrimp and prawn, 10 different cuts of salt cod. It is a fish eater’s haven in the heart of a city that eats and sells more fish than anywhere else in Europe.

Anyone who cares about where their fish come from — and this should mean anyone who wants to go on eating them — should take two tools when they visit the fishmonger. One is the handy guidance provided by Britain’s Marine Conservation Society (MCS), “Fish to Avoid” and “Fish to Eat” (the latter is still the longer); the other is a ruler. My ruler is the type handed out to commercial fishermen by the international advisory body Incofish, and has pictures of key species with marks indicating when they can be considered mature (and, thus, OK to catch).

So I set about lining up my ruler against the La Boqueria fish, starting with the mackerel (should be 34 centimetres), the plaice (39 centimetres) and the redfish (45 centimetres). All turn out to be mere babies. The mackerel is half the designated length. A glance around the stalls shows 10 or more species on the MCS’s “Avoid” list, including hake, swordfish, monkfish, bluefin tuna and, of course, cod.

I don’t spend much time doing this because the Catalan fishmongers don’t like my ruler — or me. They don’t want to talk about why they are selling tiny hake (one of Europe’s most endangered species) and why not a single fish in the market has any “sustainable” labelling.

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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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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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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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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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Letter to a young idealist

Sunday, July 20th, 2008

R.,

A few more thoughts along the same lines I talked about previously.

All of humanity’s history has been a series of incremental advances along multiple paths; business, social organization, military, agriculture, technological, etc. In all of this, the thought has primarily been to advance, empower and grow.

Now, for the first time in humanity’s history, we have filled the planet and have begun to hit various unyielding limits; water, food, oil, pollution, as well as limits having to do with how much impact we can have on the biosphere without causing huge shifts in the demographics of various species and even causing their extinctions.

It is clear, if humanity wants to continue to live indefinitely on this planet, that we are going to have to shift from a growth and advance strategy in all we do to one predicated on establishing a steady-state and sustainable balance with the biosphere around us.

We cannot use renewable resources faster than they can regenerate. We cannot occupy more of the planet’s surface than is consistent with allowing the rest of the planet’s biology to exist and flourish. These both imply that our population has to come down to some sustainable number and be held there. We have to come up with ways to govern ourselves that are consistent with establishing and maintaining these essential balances. Nation against nation, system against system is not compatible with long term survival. The ultimate goal and purpose of government in an enlightened world should be to secure all of our futures (we and all the rest of the planet’s biology) and maintain the balance.

We could, if we cut our population to sustainable levels and learned to live within a sustainable footprint on this planet, exist here for tens of thousands of years and maintain a decent quality of life for all those who are alive at any specific point in time. We do not have to give up comfort or technology – we just have to dial our impact on the planet back to sustainable levels and stay with in those levels.

Anything that the Gates Foundation or any other forward looking organization works on that does not include long term goals like these is likely in the big picture to just be a shuffling of our problems from one place to the other rather than a real indefinite-term planet-wide solution to how our species is going to solve the problem of learning to live here without fouling our nest for ourselves and all the other species that depend on this planet’s biosphere.

Forests to fall for food and fuel

Saturday, July 19th, 2008

Demand for land to grow food, fuel crops and wood is set to outstrip supply, leading to the probable destruction of forests, a report warns.

The Rights and Resources Initiative (RRI) says only half of the extra land needed by 2030 is available without eating into tropical forested areas.

A companion report documents poor progress in reforming land ownership and governance in developing countries.

Both reports were launched on Monday in UK government offices in London.

Supporters of RRI include the UK’s Department of International Development (DfID) and its equivalents in Sweden and Switzerland.

“Arguably, we are on the verge of a last great global land grab,” said RRI’s Andy White, co-author of the major report, Seeing People through the Trees.

“It will mean more deforestation, more conflict, more carbon emissions, more climate change and less prosperity for everyone.”

Rising demand for food, biofuels and wood for paper, building and industry means that 515 million hectares of extra land will be needed for growing crops and trees by 2030, RRI calculates.

But only 200 million hectares will be available without dipping into tropical forests.

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Upsetting the oil drum

Saturday, June 21st, 2008

The big push from the hard right is that the solution to our gasoline problem is unlimited drilling in the United States. This is roughly like saying the solution to losing your 100,000 dollar a year job is to fish harder for coins under your couch.

The global consumption of oil is roughly 86.8 million barrels per day. The meme the right is pushing, as always, is ANWR and unrestricted coastal drilling. The best estimates of unrestricted drilling in the US put about 25 billion barrels of oil, which sounds like a great deal, until you realize that this is less than a year of global oil demand. The reality is that the United States is the most drilled in area of the world, having had the petroleum economy more, longer, and harder, than any other place in the world. If there were easy oil to be had, we would have it.

The cost of that effort is not making things that we can sell for oil that is much easier to get at. The cry of ANWR for ever is the Republican Party telling everyone that they have no faith in the American worker, the American entrepreneur, or the free market system. It is them telling everyone that Americans cannot make things the rest of the world wants to buy. Import substitution does not in general work, because it is almost always more expensive than trading, and focusing on what can be done better inside the national unit, rather than trying to do less worse at what it does worst.

Let me repeat that. ANWR forever is a giant middle finger at everyone who works in America at any job that exports.

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