ScienceDaily: Top Science News

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• Improving materials that convert heat to electricity and vice-versa: Turning waste heat into electricity
• As climate changes, boreal forests to shift north and relinquish more carbon than expected
• Brighter clouds, cooler climate? Organic vapors affect clouds, leading to previously unidentified climate cooling
• Discovery helps show how breast cancer spreads
• Epilepsy cured in mice using brain cells

Improving materials that convert heat to electricity and vice-versa: Turning waste heat into electricity Posted: 05 May 2013 11:59 AM PDT Thermoelectric materials can be used to turn waste heat into electricity or to provide refrigeration without any liquid coolants, and new study has found a way to nearly double the efficiency of a particular class of them that's made with organic semiconductors.

As climate changes, boreal forests to shift north and relinquish more carbon than expected Posted: 05 May 2013 11:59 AM PDT New research maps how Earth's myriad climates -- and the ecosystems that depend on them -- could move from one area to another as global temperatures rise. The approach foresees big changes for one of the planet's great carbon sponges. Boreal forests will likely shift north at a steady clip this century. Along the way, the vegetation will relinquish more trapped carbon than most current climate models predict.

Brighter clouds, cooler climate? Organic vapors affect clouds, leading to previously unidentified climate cooling Posted: 05 May 2013 11:58 AM PDT Scientists have shown that natural emissions and humanmade pollutants can both have an unexpected cooling effect on Earth's climate by making clouds brighter.

Discovery helps show how breast cancer spreads Posted: 05 May 2013 11:58 AM PDT Researchers have discovered why breast cancer patients with dense breasts are more likely than others to develop aggressive tumors that spread. The finding opens the door to drug treatments that prevent metastasis.

Epilepsy cured in mice using brain cells Posted: 03 May 2013 08:03 PM PDT Epilepsy that does not respond to drugs can be halted in adult mice by transplanting a specific type of cell into the brain, researchers have discovered, raising hope that a similar treatment might work in severe forms of human epilepsy.

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