Sabtu, 02 Oktober 2010

ScienceDaily Environment Headlines

for Saturday, October 2, 2010

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World's rivers in 'crisis state', report finds (October 1, 2010) -- The world's rivers, the single largest renewable water resource for humans and a crucible of aquatic biodiversity, are in a crisis of ominous proportions, according to a new global analysis. ... > full story

How warm was this summer? (October 1, 2010) -- An unparalleled heat wave in eastern Europe, coupled with intense droughts and fires around Moscow, put Earth's temperatures in the headlines this summer. Likewise, a string of exceptionally warm days in July in the eastern United States strained power grids, forced nursing home evacuations, and slowed transit systems. Both high-profile events reinvigorated questions about humanity's role in climate change. ... > full story

Garlic oil shows protective effect against heart disease in diabetes (October 1, 2010) -- Garlic has "significant" potential for preventing cardiomyopathy, a form of heart disease that is a leading cause of death in people with diabetes, scientists have concluded in a new study. Their report also explains why people with diabetes are at high risk for diabetic cardiomyopathy. ... > full story

Simple approach could clean up oil remaining from Exxon Valdez spill (October 1, 2010) -- Traces of crude oil that linger on the shores of Alaska's Prince William Sound after the Exxon Valdez oil spill remain highly biodegradable, despite almost 20 years of weathering and decomposition, scientists are reporting in a new study. Their findings suggest a simple approach for further cleaning up remaining traces of the Exxon Valdez spill -- the largest in US waters until the 2010 Deepwater Horizon episode. ... > full story

Dinosaurs significantly taller than previously thought, research suggests (October 1, 2010) -- It might seem obvious that a dinosaur's leg bone connects to the hip bone, but what came between the bones has been less obvious. Now, researchers have found that dinosaurs had thick layers of cartilage in their joints, which means they may have been considerably taller than previously thought. ... > full story

First genetic evidence for loss of teeth in the common ancestor of baleen whales (October 1, 2010) -- Biologists provide the first genetic evidence for the loss of mineralized teeth in the common ancestor of baleen whales. This genomic record, they argue, is fully compatible with the available fossil record showing that the origin of baleen and the loss of teeth both occurred in the common ancestor of modern baleen whales. ... > full story

Varieties of tea leaves identified using neural networks (October 1, 2010) -- Chemists have managed to distinguish between different kinds of tea leaves on the basis of their mineral content and by using artificial neural networks. This technique makes it possible to differentiate between the five main varieties of tea -- white, green black, Oolong and red tea. ... > full story

Key nutrient found to prevent cataracts in salmon (October 1, 2010) -- New research shows how the nutrient histidine, when added to the diet of farmed salmon, stops cataracts from forming. ... > full story

No evidence for Clovis comet catastrophe, archaeologists say (October 1, 2010) -- New research challenges the controversial theory that an ancient comet impact devastated the Clovis people, one of the earliest known cultures to inhabit North America. ... > full story

Dog ownership is associated with reduced eczema in children with dog allergies (October 1, 2010) -- Children with eczema have a greater risk of developing asthma and food allergies. The number of children with eczema is rising, but the reasons are unclear. A new study examines the relationship between pet ownership and eczema. Researchers found that dog ownership among children with dog allergies may reduce the risk of developing eczema by age 4 years; cat ownership, however, may increase the risk among children with cat allergies. ... > full story

Species accumulate on Earth at slower rates than in the past, computational biologists say (October 1, 2010) -- Computational biologists say that species are still accumulating on Earth but at a slower rate than in the past. ... > full story

Growing drought-resistant plants: Research could offer alternative to genetically-engineered crops to combat global food shortages (October 1, 2010) -- New findings could lead to environmentally-friendly sprays that help plants survive drought and other stresses in harsh environments to combat global food shortages. ... > full story


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