The EDGE: ScienceDaily Environment Headlines -- for Saturday, July 9, 2011

ScienceDaily Environment Headlines

for Saturday, July 9, 2011

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Holes in fossil bones reveal dinosaur activity (July 8, 2011) -- New research has added to the debate about whether dinosaurs were cold-blooded and sluggish or warm-blooded and active. ... > full story

World War II bombing raids offer new insight into the effects of aviation on climate (July 8, 2011) -- Climate researchers have turned to the Allied bombing raids of the Second World War for a unique opportunity to study the effect thousands of aircraft had on the English climate at a time when civilian aviation remained rare. The study reveals how civilian and military records can help assess the impact of modern aviation on the climate today. ... > full story

Recycling: A new source of indispensible 'rare earth' materials mined mainly in China (July 8, 2011) -- That axiom of sustainability -- "recycle and reuse" -- could help ease concerns about a reliable supply of substances, indispensable for a modern technological society, that are produced almost exclusively in the Peoples' Republic of China. That's the conclusion of a study on these so-called "rare earth" elements. ... > full story

How memory is read out in the fly brain: MB-V2 nerve cells enable the read-out of associative memories (July 8, 2011) -- What happens if you cannot recall your memory correctly? You are able to associate and store the name and face of a person, yet you might be unable to remember them when you meet that person. In this example, the recall of the information is temporarily impaired. How such associative memories are "read out" in the brain remains one of the great mysteries of modern neurobiology. Now, scientists have taken the first step to unravel this mechanism. ... > full story

Indoor air pollution linked to cardiovascular risk (July 8, 2011) -- An estimated two billion people in the developing world heat and cook with a biomass fuel such as wood, but the practice exposes people -- especially women -- to large doses of small-particle air pollution, which can cause premature death and lung disease. ... > full story

New plant genus, species discovered in St. Johns River, Florida (July 8, 2011) -- Remarkable for their exquisite, glass-like cell walls in every imaginable 3-D shape and pattern -- and important for their role as bio-indicators of water quality -- diatoms are the predominant group of microscopic, single-celled algae at the base of the aquatic food chain. Biologists have now identified a new diatom genus and species. ... > full story

Body's natural marijuana-like chemicals make fatty foods hard to resist (July 8, 2011) -- Recent studies have revealed potato chips and french fries to be the worst contributors to weight gain -- and with good reason. Have you ever wondered why you can't eat just one chip or a single fry? It's not just the carbohydrates at fault. ... > full story

Ancestry of polar bears traced to Ireland (July 8, 2011) -- Scientists have discovered that the female ancestor of all living polar bears was a brown bear that lived in the vicinity of present-day Britain and Ireland just prior to the peak of the last ice age -- 20,000 to 50,000 years ago. The research is expected to help guide future conservation efforts for polar bears, which are listed as threatened under the Endangered Species Act. ... > full story

‘Cling-film’ solar cells could lead to advance in renewable energy (July 8, 2011) -- A scientific advance in renewable energy which promises a revolution in the ease and cost of using solar cells, has just been announced. A new study shows that even when using very simple and inexpensive manufacturing methods - where flexible layers of material are deposited over large areas like cling-film - efficient solar cell structures can be made. ... > full story

Nano detector for deadly anthrax (July 8, 2011) -- An automatic and portable detector that takes just fifteen minutes to analyze a sample suspected of contamination with anthrax is being developed by U.S. researchers. The technology amplifies any anthrax DNA present in the sample and can reveal the presence of just 40 microscopic cells of the deadly bacteria Bacillus anthracis. ... > full story

Fire to become increasingly important driver of atmospheric change in warming world (July 8, 2011) -- Researchers say it is likely that fire will become an increasingly important driver of atmospheric change as the world warms. ... > full story

Molecular gastronomy: Science behind the art of cooking (July 8, 2011) -- Molecular gastronomy (a scientific discipline that studies what happens when we cook) has a lot of untapped potential in Ireland, researchers say. ... > full story

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