Greener cars that use alternative fuels could help the United States slash its greenhouse gas emissions from everyday driving a full 80 per cent by 2050, according to a scientific study out today.

That could lead to a more than 10 per cent cut in overall US pollution into the atmosphere, with consumer-driven cars and small trucks currently responsible for 17 per cent of the nation's greenhouse gas emissions, said the study.

Washington: Sulphur dioxide emissions from moderate volcanoes around the world can mask some of the effects of global warming by 25%, a new study has found.

Coal-powered India, along with other countries, has successfully dodged its obligations to swiftly overhaul and regulate mercury emissions in the final draft of a United Nations treaty signed in Geneva earlier this month.

Instead of using greenest techniques at major mercury-emitting facilities, the countries have four other flexible options. India has 105 free-flowing, coal-fed power plants and production plants that emit mercury.

Hundred years after Victor Hess discovered cosmic rays in 1912, astronomers have finally found proof of what they had always suspected — but could not find direct evidence — that these highly energ

NEW DELHI: Air pollution is the fifth largest killer in India taking 6.2 lakh lives per year and Delhi is among one of the five most critically polluted regions in the country, a study by a US-based health institute has claimed.

The other four most critically polluted regions in the country are Ghaziabad, Gwalior, West Singbhum district in Jharkhand and Raipur, according to the study.

You don’t have to live in a city — or even near one — for urban activities to affect your weather, according to a new study.