Storm caused radioactive leaks at Fukushima: operator

Heavy rain at the Fukushima nuclear plant caused a leak of radioactive water containing a cancer-causing isotope, possibly into the sea, its operator said Monday, as a typhoon approaching Japan threatened further downpours.

Japan seeds clouds to boost Tokyo rain

Japanese scientists have fired cloud seeding equipment to help top up reservoirs serving the 35 million people of greater Tokyo, officials said Friday, amid a sweltering summer dry spell.

Saving Earth's water from toxic waste

Scientists have devised a better way to protect groundwater from acids, heavy metals and toxic chemicals, helping to secure the Earth's main freshwater supply.

Calculate your nitrogen footprint

Carbon footprints are a familiar way to assess how green your lifestyle is, but now you can also measure your nitrogen footprint using a new tool, the N-Calculator.

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