China, the world’s largest greenhouse gas emitter, plans to start a nationwide carbon market in the next two years following a pledge to cap emissions by 2030.

India plans to more than double the share of renewables in the mix of fuels it consumes, an effort to reduce the dominance of coal.

A new carbon market that will spur emerging nations to cut emissions is the key element of next year’s planned global climate accord, a U.K. official said.

China is considering fining smokers who light up indoors as much as 500 yuan ($81) and penalizing operators who don’t stop them, a sign of rising political willingness to curb an industry that brin

Brazil’s Jaguari reservoir has fallen to its lowest level ever, laying bare measurement posts that jut from exposed earth like a line of dominoes.

The U.S. Supreme Court agreed to decide whether the Obama administration went too far with new power-plant pollution caps the government estimates will cost almost $10 billion a year.

An agreement between the U.S.

A majority of Americans support tougher pollution limits on coal-burning power plants even if it means paying more for electricity.

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The villagers of Dharnai in northern India had been living without electricity for more than 30 years when Greenpeace installed a microgrid to supply reliable, low-cost solar power.