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Focuses on studies of underwater hydrothermal vents presented at the joint meeting of the American Geophysical Union and the American Society of Limnology and Oceanography in San Francisco, California. Discovery of a hotter, shorter-lived and more symmetrically shaped plume vent; Link of the anomaly with geological seafloor spreading at a fast scale; Semblance of water chemistry and heat between Atlantic and Pacific vents.

Reports that a team of oceanographers aboard the National Oceanic and Atmospheric Administration ship Researcher had found the telltale signs of enhanced hydrothermal activity in water samples at the Mid-Atlantic Ridge. Original goal of tracking down the exact sites of low-temperature hydrothermal vents; First example of high-temperature venting along a slow-spreading ridge.

Focuses on the effects of hydrothermal venting in the seafloor on the increasing carbon dioxide levels. Analysis of the hydrothermal activity; Reduction of atmospheric circulation; Variation on the tilt of the earth.

Reports on the discovery of several seafloor vents in the Atlantic Ocean. Contribution of vents to the chemical and thermal structure of the ocean; Origin of seafloor vents; Evidence for the presence of life forms.