Word: carbons
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Dates: during 1990-1999
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Seitz said he received a patent for his idea in 1975 and proposed manufacturing the diamond, known as carbon 12, to GE in 1987. Scientists at the GE research laboratories responded at the time with lukewarm interest, he said...
...reducing the extent to which tax policy influences economic behavior. But another change would tax activities that impose costs on society: a levy on pollutants and greenhouse gases. Larry Summers, an economics professor on leave from Harvard, for example, calculates that a tax directed at halving the growth of carbon dioxide emissions would raise $16 billion a year, while increasing the price of gasoline only about 5 cents a gallon. The tax cut could raise twice as much money and still keep U.S. energy prices below those in Germany and Japan...
Cows are contributing to global warming. To a measurable extent, they are. The symbiotic bacteria that dwell in every cow's gut enable grazers to break down the cellulose in grass. As a by-product, these bacteria produce considerable amounts of methane, which, like carbon dioxide, is a heat-trapping greenhouse gas. The methane periodically gusts forth from grazing herds in the form of rumbling postprandial belches. But if cattle contribute to the global methane load, they are hardly alone. Swamps, termite mounds and rice paddies are all hosts to similar sorts of bacterial methane factories...
Through generous alumni donations and fund-raising by individual houses, equipment has been upgraded to include carbon-fiber oars and electronic "cox-box" systems. The boats remain traditional in hull-shape and undifferentiated from one another, in order to avoid unfair advantages between the crews...
Researchers are gleaning other secrets from plant leaves preserved in the middens. At the end of the last Ice Age, for example, plant structures called stomata, which are used to process carbon dioxide, were far denser than they , are today. This suggests that the ancient atmosphere contained much less carbon dioxide. Middens have even more to reveal. The well-preserved plant and animal DNA in midden specimens promises to be a bonanza for genetic researchers...