ScienceDaily: Top Environment News: Close-up of coral bleaching event

ScienceDaily: Top Environment News

Close-up of coral bleaching event

Posted: 03 Jun 2014 10:58 AM PDT

Ecologists have shed light on exactly what happens to coral during periods of excessively high water temperatures. Their study documents a coral bleaching event in the Caribbean in minute detail and sheds light on how it changed a coral’s community of algae — a change that could have long-term consequences for coral health, as bleaching is predicted to occur more frequently in the future.

Preservation of wine without sulphite addition

Posted: 03 Jun 2014 10:57 AM PDT

A good glass of wine is a byword for quality of life — and not just for connoisseurs. In order to avoid wine spoilage, wineries mostly add sulphur dioxide during the winemaking process. However, the sulphites that

Ancient reefs preserved tropical marine biodiversity

Posted: 03 Jun 2014 10:57 AM PDT

Habitat refugia in which coral reefs have remained stable over time played a key role in preserving tropical marine fish biodiversity, a study highlights. Researchers have shown that the current distribution of tropical marine biodiversity is mainly due to the persistence of such refugia during glacial periods in the Quaternary. This imprint left by history thus has a greater impact on tropical fish biodiversity than contemporary environmental factors such as water temperature and reef area.

Carbon-capture breakthrough: Recyclable material absorbs 82 percent of its weight in carbon dioxide

Posted: 03 Jun 2014 08:43 AM PDT

Scientists invent a porous material to capture carbon dioxide at natural gas wellheads. The recyclable material absorbs 82 percent of its weight in carbon dioxide and releases it as gas when the wellhead pressure is relieved.

New look at old forests: Future growth of U.S. forests expected to decline

Posted: 03 Jun 2014 06:26 AM PDT

As forests age, their ability to grow decreases, because energy production (photosynthesis) and energy consumption (respiration) decrease with age, a new study has determined. Since most US forests are maturing from regeneration that began about 100 years ago when extensive clear-cutting occurred, the study suggests the future growth of US forests will decline.

Notifying speeding mariners lowers ship speeds in areas with North Atlantic right whales

Posted: 03 Jun 2014 06:24 AM PDT

There are only around 500 North Atlantic right whales alive today. In an effort to further protect these critically endangered animals, a recent NOAA regulation required large vessels to reduce speed in areas seasonally occupied by the whales. The policy of notifying — but not necessarily citing — speeding vessels in protected areas was effective in lowering their speeds, helping to protect these magnificent creatures from ship collisions, while keeping punitive fines to mariners to a minimum.

Modern ocean acidification is outpacing ancient upheaval: Rate may be ten times faster

Posted: 02 Jun 2014 02:03 PM PDT

Scientists estimate that surface ocean acidity increased by about 100 percent during the Paleocene-Eocene Thermal Maximum in a few thousand years or more, and stayed that way for the next 70,000 years. Scientists have long suspected that ocean acidification caused the crisis — similar to today, as humanmade CO2 combines with seawater to change its chemistry. Now, for the first time, scientists have quantified the extent of surface acidification from those ancient days, and the news is not good: the oceans are on track to acidify at least as much as they did then, only at a much faster rate.

Prediction for protection of water resources

Posted: 02 Jun 2014 07:14 AM PDT

A scientifically based decision support system (DSS) for planning, design and management of applications in the water sector has been developed by researchers. The climatic change poses an increasing threat to water resources worldwide. One solution for the minimization of the impact is the compensation of deficits with sustainable management strategies.

 

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