Word: oxygenating
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Dates: during 2000-2009
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...Mississippi river system and down to Louisiana, where the agricultural sewage pours into the Gulf of Mexico. Just as fertilizer speeds the growth of plants on land, the chemicals enhance the rapid development of algae in the water. When the algae die and decompose, the process sucks all the oxygen out of the surrounding waters, leading to a hypoxic event - better known as a "dead zone." The water becomes as barren as the surface of the moon. What sea life that can flee the zone does so; what can't, dies...
Food scraps are a recent focus for recyclers in part because, unlike glass and plastic, organic waste will decompose once it's put in the ground. But that becomes a problem in municipal landfills. As buried food breaks down in these oxygen-free environments, it produces methane, a greenhouse gas that has a warming effect 23 times as potent as carbon dioxide. Global methane emissions from garbage are estimated to be as high as 70 million metric tons a year. By recycling organic waste--composting it--methane emissions are eliminated...
Though the latest and most poisonous rumors about Michelle were ginned up by a pro-Clinton website, Obama knows that - notwithstanding John McCain's pledge that his own campaign will not engage in smears - more rumors can be expected in a general-election campaign. Trying to kill them with oxygen and openness is a risky approach. But Obama is attempting to find the humor - and the votes - by taking the rumors head-on. Speaking to the American Israel Public Affairs Committee last week, Obama greeted his largely Jewish audience, which has had doubts about his support for Israel, some...
...Kemp. As little as three weeks before he was selected, recalls Dole's campaign manager, Scott Reed, Kemp was grumbling in GOP circles that he hadn't been given a speaking spot at the party's convention. So why did Dole pick him? "We were going for oxygen, heat and energy," Reed says. "We went through the traditional list, and we just weren't happy with what we were coming up with." Kemp later turned out to be far more complicated a partner than Dole or Reed had imagined...
...Gasification mixes waste with small amounts of oxygen, then heats it at a high temperature - around 1,830 degrees Fahrenheit - in an air-tight chamber. The resulting syngas - a cocktail of light gases, including methane and natural gas - is burned, boiling water into steam to run a turbine. Gasification is an established technique, already used with fossil fuels, particularly coal. Applying it to rubbish opens a new and abundant fuel source. "As a waste-disposal method, it seems to make a lot of sense," says Jonathan R. Gibbins, an energy expert at London's Imperial College...