Nissan Motor Corporation chief executive officer Carlos Ghosn and Bhutanese prime minister Tshering Tobgay shake hands after unveiling the Nissan Leaf electric vehicle in Thimphu on Friday.

Bhutan regards environmental protection as a priority, but while it exports clean hydro-electricity to India, the proceeds are wiped out by the oil it imports to power its vehicles.

A team formed to manage transportation service in Pokhara has advised bringing pollution-free vehicles to use in order to mitigate the havoc caused by vehicular emission in the city, of late.

China's capital Beijing, regularly shrouded in hazardous air pollution, plans to replace its oil-burning buses with greener models by 2017 to help clear the smog, state news agency Xinhua said.

The European Union on Tuesday agreed a compromise to enforce stricter rules on carbon dioxide emissions for EU cars, ending months of wrangling after Germany insisted an earlier deal was torn up.

Germany has successfully tested the world's first helicopter which is noiseless and emission-free, thus dubbed as the 'green helicopter'.

EU car emissions fell 2.6 percent in 2012 from 2011, official figures showed on Wednesday, adding to a fierce Brussels debate on how quickly automakers can improve vehicle fuel efficiency.

The leaders of the three U.S.

Lithuania, holder of the EU presidency, has made a new proposal to weaken rules on how much carbon new cars can emit from 2020, in line with demands from Germany and its luxury manufacturers, EU di

The governors of California, New York and six other states have agreed to put 3.3 million zero-emission vehicles on the road within 12 years, which they said will help the environment and boost the