Word: soot
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Dates: during 2000-2009
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...Congress from protecting the nation from air pollution. And it is widely anticipated that Justice Scalia will side with the 19th century, preventing the Environmental Protection Agency from applying scientific data to tackle our complex air pollution problems. Last year, a lower federal court struck down new, greatly improved soot and smog standards. Will the Supreme Court allow us to keep our air clean? While the question hangs in the air, pollution burns the lungs of people suffering from asthma...
...just beginning to disentangle the myriad levels on which human beings and the natural climate system interact, which only increases the potential for surprise. For example, we now realize that not all the aerosols we are pumping into the atmosphere exert a cooling effect. A notable exception is soot, which is produced by wood fires and incomplete industrial combustion. Because of its dark color, soot absorbs solar energy rather than reflecting it. So when a recent scientific excursion to the Indian Ocean established that big soot clouds were circulating through the atmosphere, a number of scientists speculated that their presence...