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Tag: "basins" at biology news

Warming oceans threaten Antarctic glaciers

...ing today ?those that are seated in deep submarine basins and flow directly into the oceans. These glaciers are vulnerable to small changes in ocean temperature, such as those that have occurred over the 20th century, and those predicted for the 21st century. A rise of less than 0.5 ºC could have triggered ...

Satellites shed light on global warming

...e very long waves travel slowly across the oceanic basins influencing the major oceanic currents and are believed to play a role in the complex ‘planetary clock?that triggers one of the major climatic anomalies ?El Niño. "These waves are an important means of ocean adjustment to forcing. In a sense they...

Volcanic eruptions, ancient global warming linked

...ava flows and heating of organic-rich sediments in basins along the east Greenland margin were responsible for the global warming and changes in ocean chemistry. The breakthrough came from being able to find a marker ?the ash eruption ?that was distributed all over the North Atlantic, and showed up in th...

Pesticides in the nation's streams and ground water

... on analysis of data collected from 51 major river basins and aquifer systems across the Nation from Florida to the Pacific Northwest and including Hawaii and Alaska, plus a regional study in the High Plains aquifer system. Although none of the USGS stream sampling sites were located at drinking-water inta...

How 'Dirt' Could Educate The Immune System And Help Treat Asthma

...ect both the uptake of carbon dioxide in the ocean basins and the ocean circulation patterns themselves, Jain said. As sea-surface temperatures increase, the density of the water decreases and thus slows the ocean thermohaline circulation, so the ocean's ability to absorb carbon dioxide also decreases. This...

Climate change will affect carbon sequestration in oceans, model shows

...ect both the uptake of carbon dioxide in the ocean basins and the ocean circulation patterns themselves, Jain said. As sea-surface temperatures increase, the density of the water decreases and thus slows the ocean thermohaline circulation, so the ocean's ability to absorb carbon dioxide also decreases. This...

Genetics links whale to two different ocean basins

...fication of individual whales moving between ocean basins will help inform a number of conservation activities relating to humpback whales, including how these populations are defined, studied and managed. Humpback whales were hunted commercially until the International Whaling Commission protected the spec...

Past droughts geographically widespread in the West, according to tree-ring data

...at the Upper Colorado Basin and the Salt and Verde basins work together as one entire region." Tree-ring-ba...me; The longest continuous period when both basins had extreme low-flow years was three years; Within any four-year period, having either high f...

Man-made wetland's effectiveness similar to natural marsh

... wetland was constructed by bulldozing a series of basins into the field. The five basins sloped downward toward the river ?the second basin was at a slightly lower elevation than the first,...

Essential mangrove forest threatened by cryptic ecological degradation

...rrigation projects has been such that entire river basins have been diverted to those of other rivers. Whereas these projects certainly develop the ability to grow crops inland, at the same time such practices drastically affect the coastal zone by introducing an excess of fresh water. The consequences rang...

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