by Deep Green Resistance News Service | Mar 21, 2012 | Climate Change
By Agence France-Presse
Greenhouse gases are likely to result in annual costs of nearly $2 trillion in damage to the oceans by 2100, according to a new Swedish study.
The estimate by the Stockholm Environment Institute is based on the assumption that climate-altering carbon emissions continue their upward spiral without a pause.
Warmer seas will lead to greater acidification and oxygen loss, hitting fisheries and coral reefs, it warns.
Rising sea levels and storms will boost the risk of flood damage, especially around the coastlines of Africa and Asia, it adds.
Projecting forward using a business-as-usual scenario, the Earth’s global temperature will rise by four degrees Celsius (7.2 degrees Fahrenheit) by the end of the century, says the report, “Valuing the Ocean.”
On this basis, the cost in 2050 will be $428 billion annually, or 0.25 percent of global domestic product (GDP).
By 2100, the cost would rise to $1,979 billion, or 0.37 percent of output.
If emissions take a lower track, and warming is limited to 2.2 C (4 F), the cost in 2050 would be $105 billion, or 0.06 percent of worldwide GDP, rising to $612 billion, or 0.11 percent, by 2100.
“This is not a scaremongering forecast,” says the report.
It cautions that these figures do not take into account the bill for small island states swamped by rising seas. Nor do they include the impact of warming on the ocean’s basic processes, such as nutrient recycling, which are essential to life.
“The ocean has always been thought of as the epitome of unconquerable, inexhaustible vastness and variety, but this ‘plenty more fish in the sea’ image may be its worst enemy,” notes the report.
From PhysOrg: http://www.physorg.com/news/2012-03-ocean-climate-trillion.html
by Deep Green Resistance News Service | Mar 12, 2012 | Biodiversity & Habitat Destruction, Climate Change
By Bari Bates
Our oceans face a grim outlook in the coming decades. Ocean acidification, loss of marine biodiversity, climate change, pollution and over-exploitation of resources all point to the urgent need for a new paradigm on caring for the earth’s oceans—”business as usual” is simply not an option anymore, experts say.
The extreme rate of acidification – the term used to describe the decrease in ocean pH levels caused by man-made CO2 emissions – has happened before, Carol Turley of Plymouth Marine Laboratory said, a claim that might have been comforting if she hadn’t been referring to the time when dinosaurs died out.
This is a “huge environmental crisis,” she told attendees at an information session at European Parliament this month, addressing challenges and solutions for the world’s oceans months ahead of the United Nations Conference on Sustainable Development, Rio+20, slated to be held in Brazil in June.
Turley joked that she’s often called the “acid queen” because of her bleak message, though the plight of more than 70 percent of the earth’s surface is not in the least bit humorous.
Each year, the ocean absorbs roughly 26 percent of total CO2 emissions, which have increased by 30 percent since the beginning of the Industrial Revolution in 1750, according to the International Ocean Acidification Reference User Group.
Ocean acidification affects marine life with calcium carbonate skeletons and shells, making them sensitive to even small changes in acidity. Acidification also reduces the availability of calcium for plankton and shelled species, which constitute the base of the entire marine food chain, creating a disastrous domino affect that could wipe out entire ecosystems.
“[The] earth system is truly under the influence of man,” said Wendy Watson-Wright, assistant director general and executive secretary of the Intergovernmental Oceanographic Commission (IOC) of the United Nations Education, Scientific and Cultural Organisation (UNESCO).
The oceans could be 150 percent more acidic by 2100, she added. This means drastic decreases in yields from fisheries, and mass extinction of marine life.
The world is currently losing natural resources at a rate humans haven’t even begun to describe, she said.
Read more from Inter Press Service: http://ipsnews.net/news.asp?idnews=107042
Photo by SGR on Unsplash
by Deep Green Resistance News Service | Mar 6, 2012 | Biodiversity & Habitat Destruction, Mining & Drilling
By Oliver Milman / The Guardian
A UN environmental team has arrived in Australia for a crunch 10-day assessment of the Great Barrier Reef, warning that the coral ecosystem is at a “crossroads” due to the soaring activity of the mining industry in the World Heritage Area.
The United Nations Educational, Scientific and Cultural Organisation (Unesco) visit comes amid fears that the reef’s world heritage listing, which it has held since 1981, could be placed in jeopardy after rapid escalation in coal exports and gas exploration.
“The Great Barrier Reef is definitely at a crossroad and decisions that will be taken over the next one, two, three years might potentially be crucial for the long-term conservation [of the reef],” said Fanny Douvere, from Unesco’s World Heritage marine programme.
Australia’s coal boom is set to open up the previously undeveloped Galilee Basin in central Queensland, greatly increasing the number of developments along the state’s coast, where the 1,800-mile reef stretches.
The proposed infrastructure includes Abbott Point, which would become the largest coal export port in the world.
At full capacity, the expansion would see more than 10,000 coal-laden ships a year cross the Great Barrier Reef by the end of the decade – a sizeable increase on the 1,722 vessels that entered the World Heritage Area in 2011.
Environmentalists are concerned that ships navigating reef passageways – many of which are narrower than the English Channel – will run aground, as a Chinese vessel did in 2010, tearing a two-mile gash into the coral and spilling several tonnes of oil.
There are also warnings that the reef’s six species of turtle, including the endangered loggerhead and Olive Ridley turtles, and the snubfin dolphin, Australia’s only endemic dolphin, would be affected by any mass industrialisation of the Queensland coast.
Read more from The Guardian: http://www.guardian.co.uk/environment/2012/mar/06/great-barrier-reef-mining-boom
by Deep Green Resistance News Service | Mar 5, 2012 | Biodiversity & Habitat Destruction, Toxification
By Dahr Jamail / Al Jazeera
Hundreds of thousands of people living along the US Gulf Coast have hung their economic lives on lawsuits against BP.
Fishermen, in particular, are seeing their way of life threatened with extinction – both from lack of an adequate legal settlement and collapsing fisheries.
One of these people, Greg Perez, an oyster fisherman in the village of Yscloskey, Louisiana, has seen a 75 per cent decrease in the amount of oysters he has been able to catch.
“Since the spill, business has been bad,” he said. “Sales and productivity are down, our state oyster grounds are gone, and we are investing personal money to rebuild oyster reefs, but so far it’s not working.”
Perez, like so many Gulf Coast commercial fisherman, has been fishing all his life. He said those who fish for crab and shrimp are “in trouble too”, and he is suing BP for property damage for destroying his oyster reefs, as well as for his business’ loss of income.
People like Perez make it possible for Louisiana to provide 40 per cent of all the seafood caught in the continental US.
But Louisiana’s seafood industry, valued at about $2.3bn, is now fighting for its life.
‘The shrimp are all dead’
Perez is not alone.
“They said they’d make things right and they never did,” said Nicholas Harris, a fourth-generation oyster fisherman in eastern Louisiana. “Business has been s****y, and BP kept low-balling us with how much money they said they’d give us for compensation, so we got our attorneys involved.”
Harris, like Perez, is suing the oil giant for property damage and loss of income.
His family has a 4,000-acre private lease for oysters, but it was destroyed when the State of Louisiana diverted fresh water from the Mississippi River in a failed attempt to flush BP’s oil from the oyster fishing grounds in his area.
The situation in Mississippi for shrimpers is nearly as grim.
“I was at a BP coastal restoration meeting yesterday and they tried to tell us they searched 6,000 square miles of the seafloor and found no oil, thanks to Mother Nature,” Tuan Dang, a shrimper, told Al Jazeera while standing on a dock full of shrimp boats that would normally be out shrimping this time of year.
Song Vu, a shrimp boat captain for 20 years, has not tried to shrimp for weeks, and is simply hoping that there will be shrimp to catch next season.
His experience during his last shrimping attempts left him depressed.
“The shrimp are all dead,” he told Al Jazeera. “Everything is dead.”
Read more from Al Jazeera: http://www.aljazeera.com/indepth/features/2012/03/20123571723894800.html
by Deep Green Resistance News Service | Mar 3, 2012 | Climate Change
By The State Column
A new study conducted by NASA finds that Arctic ice is melting at a rate far faster than previously expected, increasing the rate of release of a number of deadly chemicals.
The study, published and conducted by NASA’s Goddard Space Flight Center, finds the oldest and thickest arctic sea ice is disappearing faster than younger and thinner ice at the edges, leading to the release of certain chemicals.
The average thickness of the arctic sea ice cover is declining because it is rapidly losing its thick component, the multiyear ice,” said NASA scientists in a statement. “At the same time, the surface temperature in the arctic is going up, which results in a shorter ice-forming season.
NASA officials found that the extent of perennial ice, ice that has survived at least one summer, is shrinking at a rate of 12.2 percent per decade, while its area is declining at a rate of 13.5 percent per decade. The rate of melt is the highest yet recorded by NASA.
The study is the first to identify older sea ice as more vulnerable than new sea ice. Older sea ice usually survives the summer, rebuilding on itself as winter arrives.
Among the issues identified by NASA includes an accelerating release of chemicals into the atmosphere. Drastic reductions in Arctic sea ice in the last decade may intensify the chemical release of bromine into the atmosphere, resulting in ground-level ozone depletion and the deposit of toxic mercury in the Arctic, said NASA researchers.
The study was launched with the aim of examining the nature of bromine explosions, which were first observed more than 20 years ago in Canada’s Arctic regions. The scientists “wanted to find if the explosions occur in the troposphere or higher in the stratosphere,” said NASA scientists.
The climate scientists said that melting Arctic sea ice is being replaced by a thinner and saltier ice, which releases bromine into the air when it interacts with sunlight and cold. That in turn triggers a chemical reaction called a “bromine explosion” that turns gaseous mercury in the atmosphere into a toxic pollutant that falls on snow, land and ice and can accumulate in fish.
The study is likely to rekindle the debate on limiting carbon dioxide and other greenhouse gases into the air. Already a number of various international agencies have sought to curtail the release of deadly compounds related to global warming, warning that an increase in the average temperature of the earth could have unforeseen consequences.
“Shrinking summer sea ice has drawn much attention to exploiting Arctic resources and improving maritime trading routes,” said the U.S. space agency. “But the change in sea ice composition also has impacts on the environment. Changing conditions in the Arctic might increase bromine explosions in the future.”
Read more from The State Column
