Is rider safety the real Achilles heel for Uber and Lyft?

The growth of ride-hailing companies such as Uber and Lyft so far has not been hindered by limits from government regulators and campaigns by taxi cab competitors. A bigger threat to the new industry's impressive start could ...

Great Lakes water level slump over, future unclear

Scientists say the longest period on record of abnormally low Great Lakes water levels has ended, but it's uncertain whether the recovery is temporary or the beginning of a new long-term trend.

Top pilot sees risk in unregulated US drones

Small drones pose a danger in US skies so long as clear rules governing their operation are not in place, the head of the world's biggest pilots' union said Wednesday.

Pirate Bay offline after raid on Swedish server

Swedish police have seized the computer servers hosting file-sharing site The Pirate Bay, taking the notorious website offline, the Swedish Prosecution Authority said on Wednesday.

A climate idea comes of age: Zero emissions

Pulling a worn, yellowed copy of the 1992 U.N. climate change convention from her handbag, Farhana Yamin points to the paragraph that states its goal: To stabilize greenhouse gas concentrations at a level that would prevent ...

Worms' mental GPS helps them find food

You've misplaced your cell phone. You start by scanning where you remember leaving it: on your bureau. You check and double-check the bureau before expanding your search around and below the bureau. Eventually, you switch ...

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