New technology pinpoints location of trapped miners faster

The two-week long 30th Antarctic Treaty Consultative Meeting concluded on May 11 in New Delhi. Among other resolutions, India's proposal to set up its third base station was accepted. U R Rao, chairman of the meeting, talks to Archita Bhatta on the resolutions and measures agreed upon to save Antarctica's ecology

Paul J Crutzen received the 1995 Chemistry Nobel prize for showing that nitrogen oxides react catalytically with ozone, thus accelerating the rate of reduction of the atmospheric ozone content. His findings have triggered off much research on biogeochemical cycles like the carbon and nitrogen cycle. But he tells Archita Bhatta that while the carbon cycle has been studied elaborately, dangers lie in the neglect of the nitrogen cycle