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The commitment between California and Mexico will boost efforts to fight climate change. It's the first such deal by two governments in North America.

A break-through pilot project gives citizens and local utilities data on methane leaks that used to be invisible.

An Asian typhoon, a strange-acting jet stream and a high-pressure system over Canada add up to a sudden cold snap in July.

Restoring fisheries around the world leads to large financial returns and big benefits to the oceans, fisheries and the billions who depend on them.

Ten days of Exploration in the Gardens of the Queen

The U.S. Supreme Court ruled in favor of the environment, that new and rebuilt industrial emitters use the best available technology to control emissions.

United States could cut its annual energy consumption by 23 percent by becoming more energy-efficient, saving consumers $1 trillion-plus a year.

The world's largest retailer set ambitious sustainability goals for its far-flung supply chain, and other corporations are now following Walmart's lead.

A proposed rule to slash 30% of carbon emissions from power plants would usher in new and innovative solutions.

The MSC designation comes after years of work to improve the sustainability of the fishery, including the adoption of a catch share program in 2011.

New research shows that rising global temperatures may be moving hurricanes toward the poles, closer to major East Coast cities such as Washington and NYC