global warming

Rising water temperatures are kicking up more powerful winds on Lake Superior, with consequences for currents, biological cycles, pollution and more on the world’s largest lake and its smaller brethren.
Since 1985, surface water temperatures measured by lake buoys have climbed 1.2 degrees per decade, about 15 percent faster than the air above the lake and [...]

Spurred by a warming climate, daily record high temperatures occurred twice as often as record lows over the last decade across the continental United States, new research shows.
The ratio of record highs to lows is likely to increase dramatically in coming decades if emissions of greenhouse gases continue to climb.
Results of the research, by authors [...]

The seriousness of current global warming is underlined by a reconstruction of climate at Maxwell Bay in the South Shetland Islands of the Antarctic Peninsula over approximately the last 14,000 years, which appears to show that the current warming and widespread loss of glacial ice are unprecedented.
“At no time during the last 14 thousand years [...]

New technologies and policies that save energy, remove atmospheric carbon and limit greenhouse gas emissions are needed to fight global climate change — but face daunting technological, economic and political hurdles, a Michigan State University scientist said.
The good news: Basic actions taken by everyday people can yield fast savings at low cost, according to MSU [...]

The possibility that climate change might simply be a natural variation like others that have occurred throughout geologic time is dimming, according to evidence in a Proceedings of the National Academy of Sciences paper published today.
The research reveals that sediments retrieved by University at Buffalo geologists from a remote Arctic lake are unlike those seen [...]

Starting this month, a giant NASA DC-8 aircraft loaded with geophysical instruments and scientists will buzz at low level over the coasts of West Antarctica, where ice sheets are collapsing at a pace far beyond what scientists expected a few years ago. The flights, dubbed Operation Ice Bridge, are an effort by NASA in cooperation [...]

Ancient soil-inhabiting creatures decreased in body size by nearly half in response to a period of boosted carbon dioxide levels and higher temperatures, scientists have discovered.
The researchers’ findings were published in the October 5, 2009, online edition of the journal Proceedings of the National Academy of Sciences (PNAS).
Jon Smith, a scientist at the Kansas Geological [...]

Human activities have already pushed the Earth system beyond three of the planet’s biophysical thresholds, with consequences that are detrimental or even catastrophic for large parts of the world; six others may well be crossed in the next decades, conclude 29 European, Australian and U.S. scientists in an article in the Sept. 24 issue of [...]

The world faces a compounding series of crises driven by human activity, which existing governments and institutions are increasingly powerless to cope with, a group of eminent environmental scientists and economists has warned.
In today’s issue of the leading international journal Science, the researchers say that nations alone are unable to resolve the sorts of planet-wide [...]

A new study indicates that Arctic temperatures suddenly increased during the last 50 years of the period from 1 AD to the year 2000. Because this warming occurred abruptly during the 20th Century while atmospheric greenhouse gases were accumulating, these findings provide additional evidence that humans are influencing climate.
Incorporating geologic records, biologic records and computer [...]

The warming of an Arctic current over the last 30 years has triggered the release of methane, a potent greenhouse gas, from methane hydrate stored in the sediment beneath the seabed.
Scientists at the National Oceanography Centre Southampton working in collaboration with researchers from the University of Birmingham, Royal Holloway London and IFM-Geomar in Germany have [...]

When it comes to using climate models to assess the causes of the increased amount of moisture in the atmosphere, it doesn’t much matter if one model is better than the other.
They all come to the same conclusion: Humans are warming the planet, and this warming is increasing the amount of water vapor in the [...]

No one knows exactly how much Earth’s climate will warm due to carbon emissions, but a new study this week suggests scientists’ best predictions about global warming might be incorrect.
The study, which appears in Nature Geoscience, found that climate models explain only about half of the heating that occurred during a well-documented period of rapid [...]

For one international community — the 165,000 strong Inuit community dispersed across the Arctic coastline in small, remote coastal settlements in Alaska, Canada, Greenland and Siberia — it is already too late to prevent some of the negative effects of climate change.
James D. Ford from McGill University in Montreal, Canada, is today, Thursday, 28 May, [...]

The melting of the Greenland Ice Sheet this century may drive more water than previously thought toward the already threatened coastlines of New York, Boston, Halifax and other cities in the northeastern United States and Canada, according to new research.
Results of the study are being published this week in Geophysical Research Letters. They suggest that [...]

Rivers in some of the world’s most populous regions are losing water, according to a comprehensive study of global stream flows.
The research, led by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, Colo., suggests that the reduced flows in many cases are associated with climate change, and could potentially threaten future supplies [...]

Scientists at Harvard University have found that tropical cyclones readily inject ice far into the stratosphere, possibly feeding global warming.
The finding, published in Geophysical Research Letters, provides more evidence of the intertwining of severe weather and global warming by demonstrating a mechanism by which storms could drive climate change. Many scientists now believe that global [...]

Increasing levels of carbon dioxide in the atmosphere are a concern to many environmentalists who research global warming.
The lack of atmospheric carbon dioxide (CO2) concentration, however, actually limits the growth of plants and their aquatic relatives, microalgae.
For plants and microalgae, CO2 is vital to growth. It fuels their photosynthesis process that, along with sunlight, manufactures [...]

The prairies offer opportunities for capitalizing on environmentally friendly farming practices and potentially useful agricultural waste to produce jobs, economic growth, commercial opportunities, and renewable energy sources, according to a perspective article published in the current issue of the International Journal of Private Law.
Ronald Griffin, Professor of Law at Washburn University, Topeka, Kansas, asks what [...]

Global warming is expected to cause the sea level along the northeastern U.S. coast to rise almost twice as fast as global sea levels during this century, putting New York City at greater risk for damage from hurricanes and winter storm surge, according to a new study led by a Florida State University researcher.
Jianjun Yin, [...]