12/08/2011

Sri Lanka begins 1st countrywide elephant census

(AP) -- Thousands of wildlife officials and volunteers have taken up positions on treetop huts near reservoirs and watering holes for Sri Lanka's first national count of its dwindling wild elephant population.

Engineered bacteria mop up mercury spills

Thousands of tonnes of toxic mercury are released into the environment every year. Much of this collects in sediment where it is converted into toxic methyl mercury, and enters the food chain ending up in the fish we eat. ...

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