News tagged with pollution levels
Report: Most Americans in areas with unhealthy air
Apr 29, 2009 |
4 / 5 (4) |
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(AP) -- Sixty percent of Americans live in areas with unhealthy air pollution levels, despite a growing green movement and more stringent laws aimed at improving air quality, the American Lung Association ...
Plants absorb more carbon under hazy skies
Space & Earth / Earth Sciences
Apr 22, 2009 |
3.3 / 5 (4) |
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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.
Study: Cleaner air adds 5 months to US life span
Jan 21, 2009 |
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A new study by researchers at Brigham Young University and Harvard School of Public Health shows that average life expectancy in 51 U.S. cities increased nearly three years over recent decades, and approximately five months ...
Pollution sensors send out a clear message
Space & Earth / Earth Sciences
Nov 13, 2008 |
2.8 / 5 (4) |
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(PhysOrg.com) -- New technology that can tell us the exact level of traffic fumes we are breathing in at any moment in time is being trialled in the North East.
Search results for pollution levels
UN: 2000-2009 could be Earth's warmest decade ever
17 hours ago |
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(AP) -- A leaked Danish document at the U.N. climate conference provoked angry criticism Tuesday from developing countries who feared it would shift more of the burden to curb greenhouse gases on poorer countries.
Study confirms untold levels of oil sands pollution on the Athabasca
Dec 07, 2009 |
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After an exhaustive study of air and water pollution along the Athabasca River and its tributaries from Fort McMurray to Lake Athabasca, researchers say pollution levels have increased as a direct result of nearby oil sands ...
White, but not pure
Dec 07, 2009 |
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Even the snow on Aconcagua Mountain in the Andes is polluted with PCBs. An international team of researchers detected low concentrations of these toxic, carcinogenic chlorine compounds in samples taken from ...
Elevated CO2 levels may mitigate losses of biodiversity from nitrogen pollution
Dec 03, 2009 |
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Rising levels of carbon dioxide may overheat the planet and cause other environmental problems, but fears that rising CO2 levels could directly reduce plant biodiversity can be allayed, according to a new study by a University ...
CO2 levels rising in troposphere over rural areas
Space & Earth / Earth Sciences
Dec 03, 2009 |
2.7 / 5 (3) |
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Spanish researchers have measured CO2 levels for the past three years in the troposphere (lower atmosphere) over a sparsely inhabited rural area near Valladolid. The results, which are the first of their kind ...
Scientists demonstrate multibeam, multi-functional lasers
Nov 30, 2009 |
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An international team of applied scientists from Harvard, Hamamatsu Photonics, and ETH Zürich have demonstrated compact, multibeam, and multi-wavelength lasers emitting in the invisible part of the light spectrum ...
New climate targets may not change daily life much
Nov 27, 2009 |
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(AP) -- Americans' day-to-day lives won't change noticeably if President Barack Obama achieves his newly announced goal of slashing carbon dioxide pollution by one-sixth in the next decade, experts say.
Obama to plead US case at global warming summit
Nov 26, 2009 |
1.6 / 5 (7) |
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(AP) -- President Barack Obama will commit the United States to substantial cuts in greenhouse gas pollution over the next decade - despite resistance in Congress over higher costs - when he travels to a ...
Climate experts debate strategies for reducing atmospheric carbon and future warming
Nov 25, 2009 |
2.5 / 5 (14) |
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(PhysOrg.com) -- Reducing carbon dioxide to safe levels may require extracting carbon from the air, says Cornell climate researcher.
Exposure to both traffic, indoor pollutants puts some kids at higher risk for asthma later
Nov 24, 2009 |
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New research presents strong evidence that the "synergistic" effect of early-life exposure to both outdoor traffic-related pollution and indoor endotoxin causes more harm to developing lungs than one or the other exposure ...
List of search results for pollution levels
