Food may have been scarce in Chaco Canyon

Chaco Canyon, a site that was once central to the lives of pre-colonial peoples called Anasazi, may not have been able to produce enough food to sustain thousands of residents, according to new research. The results could ...

'Oldest remains' outside Africa reset human migration clock

A 210,000-year-old skull has been identified as the earliest modern human remains found outside Africa, putting the clock back on mankind's arrival in Europe by more than 150,000 years, researchers said Wednesday.

US central bank to study Facebook virtual currency

The US Federal Reserve has created a "working group" that is coordinating with government agencies and other central banks to consider the implications of Facebook's planned virtual currency Libra, chairman Jerome Powell ...

Dramatic warming projected in world's major cities by 2050

By the year 2050, London's climate will resemble Madrid's today; Paris will be more like Canberra; Stockholm like Budapest and Moscow like Sofia, according to a new analysis published Wednesday that relied on optimistic projections.

How to capture waste heat energy with improved polymers

By one official estimate, American manufacturing, transportation, residential and commercial consumers use only about 40 percent of the energy they draw on, wasting 60 percent. Very often, this wasted energy escapes as heat, ...

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