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After an apparent increase in reported sightings of sevengill sharks in the San Diego area, scientific diver Michael Bear set up a website to allow divers to log encounters with this species. He recounts how the passion of an amateur evolved into a scientific study.

Nous inaugurons l'échantillonnage scientifique de l'étape entre Honolulu (Hawaii) et San Diego (Etats Unis) par la station Aloha. C'est une des stations les ...

Researchers have examined the scope and size of this year's "dead zone" in the Gulf of Mexico and have measured it currently to be about 3,300 square miles, or roughly the size of Delaware and Rhode Island combined, but some researchers anticipate it becoming much larger.

An international team of geoscientists has uncovered geological differences between two segments of an earthquake fault that may explain why the 2004 Sumatra Boxing Day Tsunami was so much more devastating than a second earthquake generated tsunami three months later.

Oceanographers have discovered that seawater sound absorption will drop by up to 70 percent this century, due to rising atmospheric carbon dioxide causing ocean acidification.

The northern coastline of Alaska is eroding by up to one-third the length of a football field annually because of a "triple whammy" of declining sea ice, warming seawater and increased wave activity, according to new study.

An international team of environmental scientists has shown that sea-level rise along the Atlantic Coast of the United States was 2 millimeters faster in the 20th century than at any time in the past 4,000 years.