Running an LED in reverse could cool future computers

In a finding that runs counter to a common assumption in physics, researchers at the University of Michigan ran a light emitting diode (LED) with electrodes reversed in order to cool another device mere nanometers away.

How global warming is adding to the health risks of poor people

There is mounting evidence of the impact of climate change on human habitat and health, on plant and animal life, on water resources and shorelines. These changes are felt unevenly within – and between – nations and communities. ...

Is winter miserable for wildlife?

While the weather outside may indeed get frightful this winter, a parka, knit hat, wool socks, insulated boots and maybe a roaring fire make things bearable for people who live in cold climates. But what about all the wildlife ...

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