Showing posts with label toxic. Show all posts
Showing posts with label toxic. Show all posts

Thursday, November 13, 2008

UN: Clouds of pollution threaten glaciers, health

By TINI TRAN and JOHN HEILPRIN, Associated Press Writers

BEIJING – A dirty brown haze sometimes more than a mile thick is darkening skies not only over vast areas of Asia, but also in the Middle East, southern Africa and the Amazon Basin, changing weather patterns around the world and threatening health and food supplies, the U.N. reported Thursday.

The huge smog-like plumes, caused mainly by the burning of fossil fuels and firewood, are known as "atmospheric brown clouds."

When mixed with emissions of carbon dioxide and other gases blamed for warming the earth's atmosphere like a greenhouse, they are the newest threat to the global environment, according to a report commissioned by the U.N. Environment Program.

"All of this points to an even greater and urgent need to look at emissions across the planet," said Achim Steiner, head of Kenya-based UNEP, which funded the report with backing from Italy, Sweden and the United States.

Brown clouds are caused by an unhealthy mix of particles, ozone and other chemicals that come from cars, coal-fired power plants, burning fields and wood-burning stoves. First identified by the report's lead researcher in 1990, the clouds were depicted Thursday as being more widespread and causing more environmental damage than previously known.

Perhaps most widely recognized as the haze this past summer over Beijing's Olympics, the clouds have been found to be more than a mile thick around glaciers in the Himalaya and Hindu Kush mountain ranges. They hide the sun and absorb radiation, leading to new worries not only about global climate change but also about extreme weather conditions.

"All these have led to negative effects on water resources and crop yields," the report says.

Health problems associated with particulate pollution, such as cardiovascular and respiratory diseases, are linked to nearly 350,000 premature deaths in China and India every year, said Henning Rohde, a University of Stockholm scientist who worked on the study.

Soot levels in the air were reported to have risen alarmingly in 13 megacities: Bangkok, Beijing, Cairo, Dhaka, Karachi, Kolkata, Lagos, Mumbai, New Delhi, Seoul, Shanghai, Shenzhen and Tehran.

Brown clouds were also cited as dimming the light by as much as 25 percent in some places including Karachi, New Delhi, Shanghai and Beijing.

The phenomenon complicates the climate change scenario, because the brown clouds also help cool the earth's surface and mask the impact of global warming by an average of 40 percent, according to the report.

Though it has been studied closely in Asia, the latest findings, conducted by an international collaboration of scientists, reveal that the brown cloud phenomenon is not unique to Asia, with pollution hotspots seen in North America, Europe, South Africa and South America.

More specifically, researchers found, brown clouds are forming over eastern China; northeastern Pakistan, India, Bangladesh and Myanmar; Cambodia, Indonesia, Thailand, and Vietnam; sub-Saharan Africa southward into Angola, Zambia and Zimbabwe; and the Amazon Basin in South America.

The enormous cloud masses can move across continents within three to four days. Although they also form over the eastern U.S. and Europe, winter snow and rain tend to lessen the impact in those areas.

An international response is needed to deal with "the twin threats of greenhouse gases and brown clouds and the unsustainable development that underpins both," said the lead researcher, Veerabhadran Ramanathan, a professor of climate and ocean sciences at the University of California in San Diego.

One of the most serious problems, Ramanathan said, is retreat of the glaciers in the Himalaya and Hindu Kush and in Tibet. The glaciers feed most Asian rivers and "have serious implications for the water and food security of Asia," he said.

Monsoon rains over India and southeast Asia decreased between 5 and 7 percent overall since the 1950s, the report says, naming brown clouds and global warming as a possible cause. Likewise, they may have contributed to the melting of China's glaciers, which have shrunk 5 percent since the 1950s. The volume of China's nearly 47,000 glaciers has fallen by 3,000 square kilometers (1,158.31 square miles) in the past 25 years, according to the Chinese Academy of Sciences.

Soot winds up on the surface of the glaciers that feed the Ganges, Indus, Yangtze and Yellow rivers, which makes the glaciers absorb more sunlight and melt more quickly and also pollutes the rivers, the researchers say.

But the U.N., which began studying the problem six years ago, still finds "significant uncertainty" in understanding how brown clouds affect conditions regionally, Ramanathan cautioned.

JUST PASSING THE INFO ALONG TO YOU... AND HOPE YOU DO THE SAME.

Saturday, November 1, 2008

China: Nuclear device exploded in Sichuan (underground installation; during May 12 earthquake)

Posted on Monday, June 02, 2008 8:57:38 PM by TigerLikesRooster:

Nuclear device exploded in Sichuan
By Boxun

Jun 1, 2008 - 6:46:34 PM

Lu Shishen, who reported the cover up of the earthquake forecast, said that there was a strong nuclear explosion in Sichuan during the earthquake.

Xinhua reported yesterday that an explosion of “volcano was observed in the earthquake”, people said that concrete debris was burst out of the crack during the quake.

Experts tested the debris and found it is radioactive, according to Lu Shishen’s report.

Full report in Chinese:

http://news.boxun.com/news/gb/china/2008/06/200806020720.shtml

UNDERGROUND NUCLEAR TESTING CONTAMINATES DRINKING WATER AND POLLUTES TESTING AREAS WITH A PLETHORA OF RADIOACTIVE CARCINOGENS.

Monday, August 25, 2008

Abandoned nuclear reactors generate new surge of tourism

By Hugo Martin Tribune Newspapers
11:25 PM CDT, August 23, 2008


HANFORD, Wash. — A platoon of double-crested cormorants took flight from the eastern shore of the Columbia River, skimming the sun-sparkled surface as two slender white egrets stood in the nearby shallows, hunting small fish hiding in the reeds.

Twenty kayakers, mostly tourists from the Pacific Northwest, paddled along, letting the steady current do most of the work. They coasted past mule deer grazing on the shore, coyotes stalking the sandy beaches and cliff swallows buzzing the nearby white bluffs.

But the main attraction was on the western shore: several bland, industrial-gray structures and towering smokestacks, a collection of buildings that gave birth to America's Atomic Age.

Welcome to the Hanford Reach, where one of the last free-flowing stretches of the Columbia River encounters America's most contaminated nuclear site.

Along this flat, mostly treeless scrubland, the U.S. government built nine reactors from 1943 to 1963, including the historic B Reactor that produced the world's first weapons-grade plutonium for the nuclear bomb dropped on Nagasaki, Japan, in World War II.

The reactors have leaked so much radioactivity into the air, land and water that the contamination caused by the Three Mile Island nuclear accident seems trivial by comparison.

Yet merchants and tourism directors here in southern Washington state see the river and the shuttered reactors as a growing tourist draw.

Imagine a theme park next to Chernobyl's nuclear power plant. As odd as it may sound, the idea seems to be working at Hanford.

The popular kayak tours are one example. Pat Welle, owner of Columbia Kayak Adventures, who leads two or three groups each month past the nuclear sites, said her business has more than doubled since she started it in 2004. A jet boat tour operator plans to add a second boat, and the river plays host to several bass fishing tournaments each year.

"I think the attraction is the unique combination of scenery — the white bluffs and the wildlife — and that odd collection of nuclear sites," Welle said.

The reactors have long been shut down, but the surrounding land rumbles with bulldozers, dump trucks and crews in radiation suits working on a $2 billion-a-year cleanup project — the most expensive such project in the world, according to the U.S. Department of Energy.

The irony is that although the reactors contaminated hundreds of acres, government restrictions on access left the surrounding lands largely undisturbed for more than 40 years, allowing wildlife to flourish.

The effort to make the Hanford Reach a tourist hot spot got a boost in 2000 when then- President Bill Clinton proclaimed 195,000 acres along the river and around the nuclear site a national monument. About 60,000 people now visit annually, including anglers, hikers, birders and history buffs.

That number is likely to grow under a plan by the National Park Service to upgrade boat launches and picnic sites and to open the B Reactor for regular public tours. Interior Secretary Dirk Kempthorne is also expected to approve a recommendation this month to declare the B Reactor a national historic landmark.

The story began in 1942 when the U.S. Army Corps of Engineers began searching for a plutonium production site for the then-secret Manhattan Project. With large tracts of land and access to large volumes of water to cool the reactor, the Hanford area along the Columbia River seemed perfect.

America's first large-scale nuclear reactor was built in about a year. Most workers at the B Reactor were clueless about what they were developing until the atomic bomb was dropped on Nagasaki. Later, a headline in the local paper announced: "Peace! Our Bomb Clinched It!"

During the next 20 years, the federal government built eight more reactors along the Columbia River in a 586-square-mile area known as the Hanford site.

In 1948 a dike at a reactor waste pond broke, dumping 28 pounds of uranium into the Columbia River.

Today, scientists and biologists extensively test almost every creature along the river, whether a tadpole or a deer.