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Latest Black carbon Stories

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2008-12-03 09:20:00

Soot is tarnishing the ice in the Arctic and adding a swiftness to the melting that could cause the ocean in the North Pole to be without any ice well before 2050, experts announced on Tuesday. Experts stated that in order to resist the impact of global warming in the Arctic, we should re-focus and center more on stopping the industrial greenhouse gasses like soot, ozone and methane in Europe, North America and Russia. Soot darkens the ice which causes it to absorb heat, increasing the speed...

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2008-11-19 16:27:16

A detailed analysis of black carbon -- the residue of burned organic matter -- in computer climate models suggests that those models may be overestimating global warming predictions. A new Cornell study, published online in Nature Geosciences, quantified the amount of black carbon in Australian soils and found that there was far more than expected, said Johannes Lehmann, the paper's lead author and a Cornell professor of biogeochemistry. The survey was the largest of black carbon ever...

2008-09-29 00:00:28

By Barbara Swan Alliant Energy Alliant Energy is faced with the dual challenge of providing safe, reliable and affordable energy - in a time when demand is rising 2 to 3 percent each year - and protecting the environment. We believe we've struck a balance between the two with the proposed expansion of our Nelson Dewey Generating Station in Cassville, Wis. Environmentally, Alliant Energy takes seriously its commitment to protecting the environment and reducing the amount of emissions at...

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2008-09-05 09:10:00

A new federal science report noted heavy smog hanging over Beijing could heat up the weather in the American Midwest by three degrees over the next 50 years. The report said unlike the long-lived greenhouse gas carbon dioxide, the particle and gas pollution only stays in the air for a few days or weeks but its warming effect on the climate half a world away could last for decades. "We found that these short-lived pollutants have a greater influence on the Earth's climate throughout the 21st...

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2008-07-10 07:50:00

Tugboats puff out more soot for the amount of fuel used than other commercial vessels, and large cargo ships emit more than twice as much soot as previously estimated, according to the first extensive study of commercial vessel soot emissions. Scientists from NOAA and the University of Colorado conducted the study and present their findings in the July 11 issue of the journal Geophysical Research Letters. The primary sources of soot, or small particles of black carbon, are fossil fuel...

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2008-05-06 09:20:00

Long-term Survey Will Profile Pollutants to Determine Their Origination.Using sophisticated unmanned aircraft, research scientists at Scripps Institution of Oceanography, UC San Diego hope to assess Southern California's potential for climate change and better understand the sources of air pollution.Funded by the California Energy Commission, the California AUAV Air Pollution Profiling Study (CAPPS) uses autonomous unmanned aerial vehicles (AUAVs) to gather meteorological data as the aircraft...

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2008-04-28 14:30:00

A handful of soil is a lot like a banana, strawberry and apple smoothie: Blended all together, it is hard to tell what's in there, especially if you have never tasted the fruits before.But when you look at soil's organic carbon closely, it has an incredible variety of known compounds. And looking closely is exactly what Cornell researchers have done for the first time -- at a scale of 50 nanometers (1 nanometer equals the width of three silicon atoms). Until now, handfuls of soil humus (or...

2008-04-07 16:43:41

Black carbon, the stuff that gives soot its dirty color, could be the second most important contributor to climate change after carbon dioxide and a key to preventing warming, at least in the short-run, a new study suggests. Black carbon is a type of aerosol - a small particle suspended in the atmosphere - that is produced in diesel exhaust and when wood, coal or other types of solid fuel are burned. Like other aerosols, soot particles absorb and scatter the sun's radiation; black...

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2008-03-24 12:05:00

Soot from biomass burning, diesel exhaust has 60 percent of the effect of carbon dioxide on warming but mitigation offers immediate benefitsBlack carbon, a form of particulate air pollution most often produced from biomass burning, cooking with solid fuels and diesel exhaust, has a warming effect in the atmosphere three to four times greater than prevailing estimates, according to scientists in an upcoming review article in the journal Nature Geoscience.Scripps Institution of Oceanography at...

67a234013e190a66ebd418019144d8cd1
2007-11-20 16:51:33

A new NASA study estimates that most ground-level particulate pollution in the United States stems from regional sources in North America and only a small amount is brought to the country from other parts of the world. Researchers using an innovative global aerosol tracking model have for the first time produced a global estimate of sources and movements of aerosols near the ground where they can affect human health and run afoul of environmental regulations. Previously, researchers studying...