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Monday, December 3, 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News


Origin of intelligence and mental illness linked to ancient genetic accident

Posted: 02 Dec 2012 01:43 PM PST

Scientists have discovered for the first time how humans -- and other mammals -- have evolved to have intelligence. Researchers have identified the moment in history when the genes that enabled us to think and reason evolved.

Record high for global carbon emissions

Posted: 02 Dec 2012 01:40 PM PST

Global carbon dioxide emissions are set to rise again in 2012, reaching a record high of 35.6 billion tonnes - according to new figures from the Global Carbon Project. The 2.6 per cent rise projected for 2012 means global emissions from burning fossil fuel are 58 per cent above 1990 levels, the baseline year for the Kyoto Protocol. This latest analysis shows the biggest contributors to global emissions in 2011 were China (28 per cent), the United States (16 per cent), the European Union (11 per cent), and India (7 per cent).

Childhood trauma leaves mark on DNA of some victims: Gene-environment interaction causes lifelong dysregulation of stress hormones

Posted: 02 Dec 2012 01:40 PM PST

Abused children are at high risk of anxiety and mood disorders, as traumatic experience induces lasting changes to their gene regulation. Scientists have now documented for the first time that genetic variants of the FKBP5 gene can influence epigenetic alterations in this gene induced by early trauma.

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