Choking back exhaust fumes, 22-year-old Rihana Saif stands at a traffic signal in India's capital New Delhi, holding a sign mounted on a bamboo stick imploring motorists to turn their engines off.

Japan's biggest power generator JERA said on Tuesday it will shut down all inefficient coal-fired power plants in Japan by 2030 and it aims to achieve net zero emissions of carbon dioxide by 2050 to ...

Car manufacturers design start/stop systems with special batteries and components to handle thousands of engine cycles.