Facebook backs off plan for non-voting shares

Facebook on Friday reversed course on a plan to issue a new non-voting class of shares, avoiding a public trial in a suit filed by investors in the huge social network.

New technique spots warning signs of extreme events

Many extreme events—from a rogue wave that rises up from calm waters, to an instability inside a gas turbine, to the sudden extinction of a previously hardy wildlife species—seem to occur without warning. It's often impossible ...

Algae on river flowing into Lake Erie prompts warning

Health officials in Ohio are telling children, pregnant women and people with certain medical conditions not to swim in the river that flows through Toledo because of an algae outbreak.

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