Search Results for: Ocean

When a volcano erupts, it does more than just create an ash cloud that darkens and cools a region for a few days. Instead, the most dramatic effect is actually high above us, where spewed volcanic material is not quickly washed out by rain.

If the volcanic eruption is strong enough it will inject material into the stratosphere, more than 10 miles above the Earth’s surface. Here, tiny particles called aerosols form when the volcano’s sulfur dioxide combines with water va

Space has come down to Earth for this week’s legendary Fastnet regatta. Competitor Marc Thiercelin’s 20-metre Pro-Form yacht boasts lighter batteries, more efficient solar cells and advanced energy management systems – all spin-offs from Europe’s space programmes.

On Sunday 7 August 283 boats took off from Cowes in the Rolex Fastnet 2005 race, sailing along the south coast of England before crossing the Irish Sea to round the Fastnet Rock off Ireland’s south we

I. Highlights, including authors and their institutions

The following highlights summarize research papers in Geophysical Research Letters (GL). The papers related to these Highlights are printed in the next paper issue of the journal following their electronic publication.

You may read the scientific abstract for any of these papers by going to www.agu.org/pubs/search_options.shtml and inserting

British researchers have hit on a clever way to search for ancient ozone holes and their relationship to mass extinctions: measure the remains of ultraviolet-B absorbing pigments ancient plants left in their fossilized spores and pollen.

To develop the approach, researcher Barry Lomax and his colleagues at the University of Sheffield and other leading UK institutions analyzed spores held in the British Antarctic Survey’s collection from South Georgia Island, a UK territor

Because grasslands and forests operate in complex feedback loops with both the atmosphere and soil, understanding how ecosystems respond to global changes in climate and element cycling is critical to predicting the range of global environmental changes–and attendant ecosystem responses–likely to occur. In a new study in the premier open access journal PLoS Biology Jeffrey Dukes, Christopher Field, and colleagues treated grassland plots to every possible combination of current or increased levels

Even grizzly bears should watch what they eat. It turns out that grizzlies that gorge themselves on salmon during the summer spawning season have much higher levels of contaminants in their bodies than their cousins who rely more on berries, plants and insects, according to Peter Ross of Canada’s Department of Fisheries and Oceans.

Reporting in an article to be published Sept. 15 in the American Chemical Society journal, Environmental Science & Technology, Canadian researchers say