Word: oxygenation
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Four years later, there was an even more serious accident: three Soyuz crew men were found dead in their seats after a ruptured hatch allowed their oxygen to escape during an otherwise safe reentry...
...monkey contains the instruments and goes up and down in the stratosphere; it consists of three elongated hollow "doughnuts" which fire a beam of light through its center hole as stratospheric gasses pass through. The light absorbs oxygen and measures the concentration of atmospheric gasses...
Ozone, a highly unstable union of three oxygen atoms, provides the vital function of absorbing most of the sun's ultraviolet radiation. It is continuously being formed in the stratosphere, when regular oxygen molecules interact with ultraviolet radiation...
Both companies have responded, to the satisfaction of environmentalists. Homestake uses three huge pressure cookers, called autoclaves, near one of its projects. In them, pure oxygen is pumped through a slurry of gold ore and water to eliminate pollution. By the end of the century, American gold output could reach 200 tons a year, thus making the U.S. the third largest producer behind South Africa (680 tons currently) and the Soviet Union (283 tons...
...rising 3,000 ft. higher, notably the snow-covered volcanoes Popocatépetl and Iztaccíhuatl. ("The two monsters," D.H. Lawrence wrote of them, "watching gigantically and terribly over their lofty, bloody cradle of men ... murmuring like two watchful lions.") The thin air not only contains 30% less oxygen than at sea level but makes auto engines produce nearly twice as much carbon monoxide and hydrocarbon pollution. Then, when the city's befouled air rises, the mountains trap it in the virtually permanent smog that now blocks the snowy crests from sight. The 14 million new saplings that...