Search Results for: Ocean

Exxon Valdez oil spill impacts lasting far longer than expected, scientists say

Assuming that oil spills such as the one that devastated Alaska’s Prince William Sound almost 15 years ago and other toxic insults to the environment have only short-term impacts on coastal marine ecosystems has been a big mistake, a new study shows.

Oil’s negative effects last far longer, scientists now say, and the findings should be a wake-up call for better environmental research and protection.

The study, conducted by a University of North Carolina at Chapel Hill res

Study finds evidence for global methane release about 600 million years ago

New findings may have implications for the stability of today’s climate

Scientists at the University of California, Riverside and Columbia University have found evidence of the release of an enormous quantity of methane gas as ice sheets melted at the end of a global ice age about 600 million years ago, possibly altering the ocean’s chemistry, influencing oxygen levels in the ocean and atmosphere, and enhancing climate warming because methane is a powerful greenhouse gas. Th

Radioactive potassium may be major heat source in Earth’s core

Radioactive potassium, common enough on Earth to make potassium-rich bananas one of the “hottest” foods around, appears also to be a substantial source of heat in the Earth’s core, according to recent experiments by University of California, Berkeley, geophysicists.

Radioactive potassium, uranium and thorium are thought to be the three main sources of heat in the Earth’s interior, aside from that generated by the formation of the planet. Together, the heat keeps the mantle actively churning

Scientists ’reconstruct’ Earth’s climate over the past millenium

Using the perspective of the last few centuries and millennia, speakers in a press conference at the Fall Meeting of the American Geophysical Union in San Francisco will discuss the latest research involving climate reconstructions and different climate models.

The press conference features Caspar Ammann of the National Center for Atmospheric Research (NCAR), Boulder, Colo.; Drew Shindell of NASA’s Goddard Institute for Space Studies, New York; and Tom Crowley of Duke University, Durham

Study of erosion and precipitation in the Himalayas presents surprising findings scholars say

Scientists have found that, despite a vast difference in precipitation between the north and south sides of the Himalaya Mountains, rates of erosion are indistinguishable across these mountains.

Douglas Burbank, professor of geology and director of the Institute for Crustal Studies at the University of California, Santa Barbara, is the first author of the article, “Decoupling of erosion and precipitation in the Himalayas,” to be published Thursday, December 11, in the international scientif

New Hybrid Vehicle Will Enable US Scientists to explore the deepest parts of the world’s oceans

For the first time since 1960, US scientists will be able to explore the deepest parts of the world’s oceans, up to seven miles below the surface, with a novel underwater vehicle capable of performing multiple tasks in extreme conditions. Researchers at the Woods Hole Oceanographic Institution (WHOI) are developing a battery-powered underwater robot to enable scientists to explore the ocean’s most remote regions up to 11,000 meters (36,000-feet) deep.

The hybrid remotely operated vehicle

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