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Oceanic Temperatures and Climate Effects
June 22, 2010 04:38 PM - Andy Soos, ENN
The study of ancient climates and oceanic temperatures can lend clues as to how future climate changes might happen. An international team of researchers, led by the members of the Institut de Ciència i Tecnologia Ambientals (ICTA) at the Universitat Autònoma de Barcelona (UAB), has published studies of the evolution of Northern Pacific and Southern Atlantic sea surface temperatures, dating from the Pliocene Era; some 3.65 million years ago. The data obtained in the reconstruction indicate that the regions closer to the poles of both oceans have played a fundamental role in climate evolution in the tropics.
The Dangers of Arsenic
June 22, 2010 11:11 AM - David A Gabel, ENN
Arsenic is an extremely potent carcinogen and toxic to vital organs such as the liver, skin, kidney, and cardiovascular system. A common pathway of human exposure is through drinking water. Previous studies that assessed the long-term exposure to arsenic in drinking water have lacked resolution and rely too heavily on retrospective analysis. However, a 10-year study in Bangladesh has been released recently, and promises to be the definitive study to determine the long-term effects of arsenic exposure.
The Return of the Superfund Tax
June 22, 2010 11:08 AM - Andy Soos, ENN
The U.S. Environmental Protection Agency (EPA) has sent a letter to Congress in support of reinstating the old and lapsed Superfund polluter pays taxes. Superfund is the federal government's program that investigates and cleans up the nation's most complex, uncontrolled or abandoned hazardous waste sites. If reinstated, the Superfund tax would provide a stable, dedicated source of revenue for the program and increase the pace of Superfund cleanup. It would also ensure that parties who benefit from the manufacture or sale of substances that commonly cause environmental problems at hazardous waste sites, and not taxpayers, help bear the cost of cleanup when responsible parties cannot be identified.
Asian Rivers Impacted by Clmate Change
June 21, 2010 05:27 PM - Andy Soos, ENN
It all depends on where you are. When weather patterns change rainfall will increase some places and decrease in other places. What has the most impact is those river systems that many people depend on. Two of Asia's major rivers are the the Brahmaputra and Indus river basins that descend from the Himalayas into India. According to some recent study these two are likely to be severely affected by climate change while others will be less affected and could even benefit.
Saharan Sun Power
June 21, 2010 01:52 PM - Andy Soos, ENN
There is plenty of sun in deserts and the Sahara is one of the biggest deserts in the world. Europe intends to import its first solar generated electricity from North Africa within the next five years, European Energy Commissioner Günther Oettinger said in an interview on Sunday. The European Union is backing projects to turn the plentiful sunlight in the Sahara desert into electricity for Europe, a scheme it hopes will help meet its target of deriving 20% of its energy from renewable sources by 2020.
Greening Our Capital Cities
June 18, 2010 02:22 PM - Andy Soos, ENN
Greening America's Capitals is a project of the Partnership for Sustainable Communities between EPA, the U.S. Department of Housing and Urban Development (HUD), and the U.S. Department of Transportation (DOT) to help state capitals develop an implementable vision of distinctive, environmentally friendly neighborhoods that incorporate innovative green building and green infrastructure strategies. This program will assist three to four communities per year, with the first projects beginning in the fall of 2010.
The Oddness of Water and Ice
June 17, 2010 04:53 PM - Andy Soos, ENN
Water is vital for life and how it freezes is very important. For years water (ice) has been known to exist in 15 phases. Subjected to higher pressures and varying temperatures, ice can form in fifteen separate known phases. With care all these types can be recovered at ambient pressure. The types are differentiated by their crystalline structure, ordering and density. There are also two metastable phases of ice under pressure, both fully hydrogen-disordered; these are IV and XII. Ice XII was discovered in 1996. In 2006, XIII and XIV were discovered. Ices XI, XIII, and XIV are hydrogen-ordered forms of ices Ih, V, and XII respectively. In 2009 ice XV was found at extremely high pressures and −143 degrees celsius. Now there is another variation.
June 17, 2010 07:10 AM - Andy Soos, ENN
Though unseen the ocean floor is a volcanic hot bed where the tectonic plates collide and spread apart. New research reveals that when two parts of the Earth's crust break apart, this does not always cause massive volcanic eruptions. The study, published today in the journal Nature, explains why some parts of the world saw massive volcanic eruptions millions of years ago and others did not. The Earth's crust is broken into plates that are in constant motion over timescales of millions of years. Plates occasionally collide and fuse, or they can break apart to form new ones. When the latter plates break apart, a plume of hot rock can rise from deep within the Earth's interior, which can cause massive volcanic activity on the surface (sort of like blood from a skin cut).
No-Fish area in Gulf expanded again
June 17, 2010 06:37 AM - Roger Greenway, ENN
The area of the Gulf of Mexico closed to fishing has been expanded again by NOAA to capture portions of the oil slick moving beyond the area’s current northern boundary, off the Florida panhandle’s federal-state waterline. This boundary was moved to Panama City Beach. The federal closure does not apply to any state waters. Closing fishing in these areas is a precautionary measure to ensure that seafood from the Gulf will remain safe for consumers.
Salt, Genes and Bitterness
June 16, 2010 02:06 PM - Andy Soos, ENN
Salt is a very common food ingredient and condiment. Many people enjoy the taste. Many doctors do not like because of the potential threat to health and heart attacks. Salt (good old Sodium Chloride) can mask bitter tastes and make food more palatable. Some people are more sensitive to bitter flavors and then tend to eat more salt and have a harder time eating less of it. As experts urge Americans to cut their intake by more than half to 2,300 milligrams (about a teaspoon) of sodium a day or less, insights like these might help identify the people who will may need some other way to mask bitter tastes.