Nina Chestney

RIO DE JANEIRO, (Reuters) - Some large economies show significantly lower growth when natural assets such as forests and water are factored into growth indicators, an index showed on Sunday, a few days before an international sustainability summit starts in Rio de Janeiro.

Boyd Cohen

Crunching a list of variables about innovation and sustainability, we rank the world’s smartest cities, from New York to Hong Kong (and with an unexpected winner)

Christopher Mims

Today, renewable energy sources generate 12 percent of electricity in the U.S. But wind, wave, sunshine and others represent more than 93 percent of the energy the country could be producing, according to the Energy Information Administration of the U.S. Department of Energy.

Stephanie Pappas

The world's biodiversity is down 30 percent since the 1970s, according to a new report, with tropical species taking the biggest hit. And if humanity continues as it has been, the picture could get bleaker.

Kounteya Sinha, TNN

Clair MacDougal

Because of good governance in the past, and now oil production, Ghana is likely to reach all of the Millennium Development Goals toward ending extreme poverty and child mortality.

Fiona Harvey and Damian Carrington

Ministers attending clean energy summit in London to be gravely warned about continuing global addiction to fossil fuels

Catherine Hornby

ROME, April 30 (Reuters) - India's economic growth and political stability are at stake in coming years if it does not change its approach to water management, a member of its natural resources planning commission told Reuters on Monday.

Experiments may dramatically underestimate how plants will respond to climate change in the future.

Nina Chestney

LONDON, May 8 (Reuters) - Rising carbon dioxide emissions will cause a global average temperature rise of 2 degrees Celsius by 2052 and a 2.8 degree rise by 2080, as governments and markets are unlikely to do enough against climate change, the Club of Rome think tank said.