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Latest Black carbon Stories

2009-06-29 16:37:33

Particulate pollution thought to be holding climate change in check by reflecting sunlight instead enhances warming when combined with airborne soot, a new study has found.Like a black car on a bright summer day, soot absorbs solar energy. Recent atmospheric models have ranked soot, also called black carbon, second only to carbon dioxide in potential for atmospheric warming. But particles, or aerosols, such as soot mix with other chemicals in the atmosphere, complicating estimates of their...

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2009-05-28 10:57:13

Researchers from the United States and around the world have determined springtime agricultural fires have a significant impact on the melting of arctic ice. The scientists are to meet at the University of New Hampshire next week to discuss findings from the most ambitious effort ever undertaken to measure short-lived airborne pollutants in the Arctic Circle. The two-year international project known as Polarcat focused on the transport of pollutants into the arctic from lower latitudes. Among...

2009-05-27 08:27:55

 Scientists from around the world will convene at the University of New Hampshire June 2-5, 2009, to discuss key findings from the most ambitious effort ever undertaken to measure "short-lived" airborne pollutants in the Arctic and determine how they contribute in the near term to the dramatic changes underway in the vast, climate-sensitive region.The two-year international field campaign known as POLARCAT was conducted most intensively during two three-week periods last spring and...

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2009-04-29 05:55:00

Former Vice President Al Gore called for fast action to avert the potentially irreversible melting of the Earth's ice. Speaking at the first conference to exclusive discuss the planet's melting ice, the Nobel prize winning climate champion warned that the situation is worse than previous worst-case scenarios projected by experts just a few years ago. The Tromsoe, Norway, conference comes just months ahead of a U.N. climate summit set for December in Copenhagen. "This conference is a global...

2009-04-23 08:26:27

Plants absorbed carbon dioxide more efficiently under the polluted skies of recent decades than they would have done in a cleaner atmosphere, according to new findings published this week in Nature.The results of the study have important implications for efforts to combat future climate change which are likely to take place alongside attempts to lower air pollution levels.The research team included scientists from the Centre for Ecology & Hydrology, the Met Office Hadley Centre, ETH...

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2009-04-08 15:22:44

Though greenhouse gases are invariably at the center of discussions about global climate change, new NASA research suggests that much of the atmospheric warming observed in the Arctic since 1976 may be due to changes in tiny airborne particles called aerosols. Emitted by natural and human sources, aerosols can directly influence climate by reflecting or absorbing the sun's radiation. The small particles also affect climate indirectly by seeding clouds and changing cloud properties, such as...

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2009-03-31 06:40:00

A U.S. request was made to the United Nations International Maritime Organization asking that a safe barrier be established along American coastlines to reduce pollution emitted by ocean-going ships which jeopardize human health, the Environmental Protection Agency said on Monday, in a report accounted by Reuters.  EPA Administrator, Lisa Jackson, commented, "This is an important and long overdue step in our efforts to protect the air and the water along our shores and the health of the...

2009-03-19 14:19:00

World's largest supplier of retrofit and emission control technology for heavy duty diesel engines uniquely qualified to provide optimum solutions MALVERN, Pa., March 19 /PRNewswire-FirstCall/ -- Johnson Matthey announced today that it offers the broadest range of solutions to control heavy duty diesel emissions to meet the response from public and private fleets and others planning to apply for $300 million in grant monies under the EPA's Diesel Emissions Reduction Act (DERA). The...

2009-03-12 08:48:00

COPENHAGEN, Denmark, March 12 /PRNewswire-USNewswire/ -- The following is being released by the Institute for Governance & Sustainable Development: The need for urgent action has been emerging as a primary theme of the Copenhagen Climate Congress this week - including urgent action on mitigation strategies that complement aggressive cuts in CO2 emissions. "Everyone must understand the urgency of this matter and the potential costs," Danish Minister of Climate and Energy Connie Hedegaard...

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2009-02-27 08:49:28

Commercial ships emit almost half as much particulate pollutants into the air globally as the total amount released by the world's cars, according to a new study led by the National Oceanic and Atmospheric Administration and the University of Colorado at Boulder. The study is the first to provide a global estimate of maritime shipping's total contribution to air particle pollution based on direct emission measurements. The authors estimate ships emit about 1,100 tons of particle pollution...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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