19/09/2015

'Seismic alert!': Apps warn Mexicans of quakes

A powerful earthquake strikes off the Pacific coast of Mexico. Within seconds, radio transmissions, megaphones and smartphone apps blare warnings to the capital's 20 million people before the ground shakes.

Researchers find heavy metals along river after mine spill

Researchers say they found scattered accumulations of heavy metals along a 60-mile stretch of riverbank in Colorado and New Mexico a month after the Gold King Mine wastewater spill and say that any potential threat to crops ...

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