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Siberian lakes burp "time-bomb" greenhouse gas
Frozen bubbles in Siberian lakes are releasing methane, a greenhouse gas, at rates that appear to be "... five times higher than previously estimated" and acting as a positive feedback to climate warming, said Katey Walter, in a paper published today in the journal Nature.   view more (2006-09-08)

Hot volcanic eruptions could lead to a cooler Earth
Volcanic eruptions may be an agent of rapid and long-term climate change, according to new research by British scientists.   view more (2005-06-13)

Fertilizers - a growing threat to sea life
New study on landscape around Chesapeake Bay says imbalance in nitrogen cycle is damaging water quality and fish populations.   view more (2008-10-22)

Greenhouse gas bubbling from melting permafrost feeds climate warming
A study co-authored by a Florida State University scientist and published in the Sept. 7 issue of the journal Nature has found that as the permafrost melts in North Siberia due to climate change, carbon sequestered and buried there since the Pleistocene era is bubbling up to the surface of Siberian thaw lakes and into the atmosphere as methane, a... view more... (2006-09-07)

Report shows deforestation threatens Brazil's Pantanal
Deforestation from increased grazing and agriculture has destroyed 17 percent of the native vegetation in Brazil's Pantanal, considered the world's largest wetland.   view more (2006-01-11)

Northern bogs may have helped kick-start past global warming
Methane gas released by peat bogs in the northern-most third of the globe probably helped fuel the last major round of global warming, which drew the ice age to a close between 11,000 and 12,000 years ago, UCLA and Russian Academy of Sciences scientists have concluded.   view more (2006-10-13)

Biodiversity conservation may help reduce the impacts of natural disasters - UNU
As ministers meet at the Eighth Meeting of the Conference of the Parties to the Convention on Biological Diversity (CBD COP-8), the United Nations University (UNU) urges governments to incorporate the Millennium Ecosystem Assessment (MA) findings in national planning processes and poverty reduction strategies to promote ecosystem services that may... view more... (2006-03-30)

Explaining the methane mystery
Scientists have explained why atmospheric levels of the greenhouse gas methane have stabilised in recent years, but warn that increases could resume in the near future.   view more (2006-09-28)

Frozen methane chunks not responsible for abrupt increases in atmospheric methane
Icy chunks of frozen methane and water are not responsible for the periodic increases in atmospheric methane recorded in Greenland ice cores.   view more (2006-02-10)

Study rules out ancient 'bursts' of methane from seafloor deposits
A dramatic increase about 12,000 years ago in levels of atmospheric methane, a potent greenhouse gas, was most likely caused by higher emissions from tropical wetlands or from plant production, rather than a release from seafloor methane deposits.   view more (2006-08-25)

New report says human tampering threatens planet's life-sustaining surface
In a report released today, scientists call for a new systematic study of the Earth's "critical zone"-the life-sustaining outermost surface of the planet, from the vegetation canopy to groundwater and everything in between.Understanding and predicting responses to global and regional change is necessary, they say, to mitigate the impacts... view more... (2006-08-02)

Nitrogen pollution boosts plant growth in tropics by 20 percent
A study by UC Irvine ecologists finds that excess nitrogen in tropical forests boosts plant growth by an average of 20 percent, countering the belief that such forests would not respond to nitrogen pollution.   view more (2008-02-07)

Scientists investigate impact of climate change on India's monsoon season
Scientists at the University of Liverpool are investigating the anticipated effects of climate change on India's monsoon season and the impact that alterations in India's water cycle will have on the country's people, agriculture and wildlife.   view more (2007-03-09)

Beaver dams create healthy downstream ecosystems
Beavers, long known for their beneficial effects on the environment near their dams, are also critical to maintaining healthy ecosystems downstream.   view more (2006-06-06)

Hotspots of mercury contamination identified in eastern North America
A US and Canadian research team surveying mercury contamination in fish and birds in the northeastern United States and southeastern Canada has identified five "hotspots" where concentrations of the element exceed those established for human or wildlife health.   view more (2007-01-03)

How healthy is that marsh? Biologists count parasites
Is that salt marsh healthy? To answer this, Sea Grant biologists are cracking open common marsh snails and counting parasitic worms. Their claim: the more parasites, the healthier the marsh.   view more (2006-05-19)

Changing climate may make 'super weed' even more powerful
Researchers at the University of Delaware have discovered a new reason why the tall, tasseled reed Phragmites australis is one of the most invasive plants in the United States.   view more (2009-06-04)

The South East Asian snail disaster
A promising enterprise became an economical and ecological disaster. The golden apple snail (Pomacea canaliculata) that was brought to Asia in 1980 to be cultured in ponds for human consumption instead spread through rice fields, irrigation channels and wetlands. It had a voracious appetite for rice seedlings and soon became a dreaded pest in the... view more... (2004-03-31)

Burning wetlands unleash sequestered mercury in wake of climate change
Climate change appears to be contributing to the waking of a dangerous sleeping giant in the most northern wetlands of North America - mercury.   view more (2006-08-22)

Wetlands likely source of methane from ancient warming event
An expansion of wetlands and not a large-scale melting of frozen methane deposits is the likely cause of a spike in atmospheric methane gas that took place some 11,600 years ago, according to an international research team led by Scripps Institution of Oceanography at UC San Diego.   view more (2009-04-24)
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