Abstracts » Science and technology

Melting away; the shrinking of an immense swath of Antarctic ice threatens to raise sea level - and there may be no stopping it

Article Abstract:

Geologic research indicates that the polar ice sheet in West Antarctica is melting, and may have the potential for raising the sea level. However, scientists believe that the rate of increase will be slow enough to avoid immediate danger to seacoast cities.

Antarctica, Research, Global warming, Antarctic regions, Ice sheets, Ice

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Staying sane in space: the human factors

Article Abstract:

Research on the behavior and psychology of long-mission space flight will have to be closely analyzed to prepare for manned Mars missions. Even the most carefully selected and highly qualified crew members will be stressed to the limit by these missions.

Social aspects, Cover Story, Physiological aspects, Mars (Planet), Discovery and exploration, Manned space flight, Space shuttles, Weightlessness

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Shrinking the dead zone

Article Abstract:

Issues are presented concerning the causes and growth of the Gulf of Mexico's oxygen-depleted bottom waters. The influence of the 1.6-million metric tons of nitrogen carried into the Gulf annually by the Mississippi River is discussed.

Causes of, Hypoxia, Anoxia, Mississippi River, Marine ecology, Gulf of Mexico, Nitrogen fertilizers

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