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Beijing Restrictions Reduce Pollution
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Published December 17, 2008
Measures taken by Chinese officials to improve Beijing’s air quality during the 2008 summer Olympic games dramatically cut concentrations of two major pollutants, say NASA researchers.
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Carbon Monoxide over Africa
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Published September 3, 2008
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Carbon Monoxide from Central African Fires
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Published June 18, 2008
Fire is integral to life in much of Africa. As predictable as the rainy and dry seasons, fire sweeps across the continent in a wave that moves north to south following the seasons. In early June, Africa’s fires were concentrated in central Africa. Lightning-ignited fire is part of the natural ecology, but for thousands of years it has also been a tool used by mankind to clear land for new growth, return nutrients to the soil, make charcoal for cooking and fuel, clear debris, and hunt. It is primarily human activity that leads to intense burning in a region during the fire season.
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Haze over Eastern China
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Published October 25, 2007
The conspicuous haze over China in mid- to late October 2007 not only obscured the view of the land surface. It also contained substances harder to detect but just as troublesome. Odorless, colorless, and toxic, carbon monoxide can be lethal in large amounts. Additionally, it acts as a precursor to smog and ground-level ozone.
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Fires and Thick Smoke over South America
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Published October 2, 2007
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Humans, El Nino Conspire to Boost Carbon Monoxide Levels
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Published March 2, 2007
Who is responsible when smoke fills the sky? Do people who set agricultural fires deserve the blame, or are natural cycles the real culprit? The correct answer may be “yes.” In the case of wildfires in Indonesia, human activity and natural cycles likely conspire to create devastating fire seasons.
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