A federal appeals court on Wednesday rejected the U.S.

The carbon footprint of some of the world’s biggest cities is 60 percent larger than previously estimated when all the products and services a city consumes are included, according to a new analysi

Wealthy cities are responsible for a huge share of greenhouse-gas emissions when calculations include goods they consume from developing countries, researchers said on Tuesday, challenging traditio

The ISA is a tremendous initiative by India and France to accelerate the inevitable technology-driven renewable energy transformation of the world's electricity markets.

The new findings come on the heels of a U.N.