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UN scientist: fighting climate change saves costs

(AP) -- The U.N.'s top climate scientist cautioned climate negotiators Wednesday that global warming is leading to human dangers and soaring financial costs, but containing carbon emissions will have a host of benefits.

Uncovering Da Vinci's rule of the trees

As trees shed their foliage this fall, they reveal a mysterious, nearly universal growth pattern first observed by Leonardo da Vinci 500 years ago: a simple yet startling relationship that always holds between the size of a tree's trunk and sizes of its branches.  A new paper has reignited the debate over why trees grow this way, asserting that they may be protecting themselves from wind...

Why evolutionarily ancient brain areas are important

Structures in the midbrain that developed early in evolution can be responsible for functions in newborns which in adults are taken over by the cerebral cortex. New evidence for this theory has been found in the visual system of monkeys by a team of researchers from the RUB. The scientists studied a reflex that stabilizes the image of a moving scene on the retina to prevent blur, the so-termed...

British butterfly is evolving to respond to climate change

As global temperatures rise and climatic zones move polewards, species will need to find different environments to prevent extinction. New research, published today in the journal Molecular Ecology, has revealed that climate change is causing certain species to move and adapt to a range of new habitats.

China to hold first AIDS Walk on Great Wall

China is due to hold its first AIDS Walk -- a fundraising walkathon already popular in the US -- on the Great Wall, organisers said Wednesday, as the nation steps up its fight against the disease.

Impatient people have lower credit scores: study

Is there a psychological reason why people default on their mortgages? A new study, which will be published in an upcoming issue of Psychological Science, a journal of the Association for Psychological Science, finds that people with bad credit scores are more impatient – more likely to choose immediate rewards rather than wait for a larger reward later.

Researchers examine role of inflammatory mechanisms in a healing heart

(Medical Xpress) -- Virginia Commonwealth University researchers have found that an inflammatory mechanism known as inflammasome may lead to more damage in the heart following injury such as a heart attack, pointing researchers toward developing more targeted strategies to block the inflammatory mechanisms involved.