An erupting volcano forces conservationists to airlift endangered tortoises to safety

A novel polymer coating, the echocoat polymer, could make heart operations Wer by helping doctors keep track of medical devices used in heart surgery. The plastic works by reflecting

Citizens voice their concernfor a dwner environment

Radio telescopes will tell about the Universe

An investment of Rs 300 can bring electricity to every household in rural India. Humble cow dung can do this and more

Researchers may soon develop pota- toes that could prevent diabetes. Transgenic potatoes produce large amounts of substances that in turn produce a foreign protein. Such potatoes have been suggested

The DTC's plan to buy new eco friendly buses is left hanging as Delhi government stalls the deal. Manish Tiwari and Anumita Roychowdhary report

... for clean air

• The DTC floats a tender for modern, commuter and environment-friendly urban buses. • Nine companies, including Volvo, Daewoo, Optaire and India's Ashok leyland and TElCO, bid.