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S.Africa lifts freeze on shale gas exploration

South Africa on Friday said it was lifting a freeze on shale gas exploration in a move condemned by environmentalists who fear that controversial fracking will pollute scarce water sources.

This new sensor can detect mercury ions with just a tap

Although many measures are in place to prevent contamination, pollutants such as mercury and lead can still end up in the environment. Sensing them often requires complicated processes, but what if you could detect them with ...

Japan regulators OK costly ice wall at Fukushima plant (Update)

Japanese regulators on Wednesday approved the use of a giant refrigeration system to create an unprecedented underground frozen barrier around buildings at the wrecked Fukushima nuclear plant in an attempt to contain leaking ...

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