Harvesting energy from devices

If there's one thing nearly all modern technology has in common, it's heat. Whether it's your car, computer, television, or even refrigerator, they all generate large amounts of heat. And nearly all of it goes to waste.

Researcher aims to use waste heat to make cars more efficient

Yanliang Zhang wants to make vehicles more efficient by using a resource most people aren't even aware of—the waste heat that results from the inherent inefficiency of engines when converting fuel into energy.

Planning in the near term for climate change

When scientists talk about climate change, they usually mean significant changes in the measures of climate over several decades or longer. Climate variability generally refers to seasonal changes over a year or so.

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