Word: existences
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Dates: during 1980-1989
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...acknowledges that such a solution doesn't really solve the basic problem which The End of Nature poses. By voluntarily choosing to reshape our society, we would still relegate nature to a secondary role. The natural world would exist in an untainted state only because we had willed...
...nature is an inescapable consequence of the process, McKibben argues. Once humanity contaminates its last spot of virgin earth, nature, a world apart, will cease to exist. In its place will be something that may look like nature and sound like nature and smell like nature, but will not feel the same...
...contrary, it has escalated into something very close to civil war. In both republics ferocious animosities generated by the rivalries have brought to the fore nationalist groups threatening secession. Indeed, traveling between the two republics, a visitor finds it difficult to imagine how they can continue to exist in the same country much longer...
Working with a bacterium and a pond-dwelling protozoan, Altman, 50, and Cech, 41, independently discovered that RNA can act as an enzyme, a molecule that accelerates chemical reactions a millionfold or more and makes it possible for life to exist. Plants, for example, depend on enzymes to convert carbon dioxide in the air to sugar and starch. An enzyme in human saliva helps transform starch into glucose, the body's energy source. Until RNA enzymes were identified, all enzymes were thought to be proteins...
...months. Originally sent from Perth to Saudi Arabia, which buys 3 1/2 million Australian sheep a year, this flock was turned away after the Saudi Ministry of Agriculture and Water asserted that the bleaters were afflicted with sheep pox and bluetongue. Australian officials say those diseases do not exist in their country and that the Saudis were pressured by their own sheep producers to cut imports...