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President Obama’s administration adds another important climate action with an 18-wheeler of a fuel efficiency rule for trucks.

EDF’s Investor Confidence Project Launches New Energy Efficiency Pilot with PG&E

D.C. Circuit Court announces schedule for oral argument in the Clean Power Plan case

Now that we know what caused a massive heat-trapping methane cloud over a section of New Mexico and Colorado, we can do something about it.

EDF, Other Health and Clean Air Advocates Ask Court for Permission to Intervene in Methane Litigation

EPA and DOT announce final second-phase Clean Truck standards

Hope without action, says the Hollywood actor-director and climate activist, "isn't worth much." That's why he's on board with EDF.

WSJ leaks that Clean Trucks standards will be finalized tomorrow. Fred Krupp comments.

Trying to wrap your head around what Brazil has done right – and not – when it comes to dealing with Amazon deforestation can leave you dizzy. But there are definite bright spots.

EPA holds a public hearing for the Clean Energy Incentive Program in Chicago. EDF submits testimony.

Statement from Shems Jud, Pacific Regional Director of Environmental Defense Fund’s Oceans Program on Ninth Circuit Court of Appeals Fishing Ruling

EDF and Google map methane leaks from gas pipelines in Mesa Arizona, highlights successful strategies that fix leaks

The Clean Energy Standard: New York’s Continuing Commitment to a Sustainable Future

States, Oil and Gas Industry Groups File Court Petitions Challenging Vital Protections from Methane Pollution

California Air Resources Board unveils the state's proposed blueprint for meeting Clean Power Plan goals

White House releases new NEPA guidance to help address climate change

The business case for changing the chemicals in products is thin. But there's more to this story.

By the end of this century, the single most crucial indicator of human well-being will be the concentration of carbon dioxide in the Earth’s atmosphere.

Many of the world’s fish are caught in small-scale fisheries that lack data about the health of fish populations, giving managers very limited information to base management decisions on. In turn, most of these fisheries appear to be under-performing with respect to conservation, the amount of food they can produce, the amount of money they …

Large food companies are pushing their supply chains to reduce fertilizer runoff. If scaled up, this model could prevent harmful algae blooms.

Washington, DC’s water utility launched an interactive map allowing residents to see whether water pipes are lead, non-lead, or if there’s no information.

The US EPA today formally issued its finding that six GHGs from aviation are dangerous to human health and welfare; they cause and contribute to climate change, and EPA will regulate them.

FirstEnergy to Close Coal Plants, Give Ohioans Cleaner Air

Extreme heat warnings were issued for a large swath of the central United States this week. Here are four things you may not know about the heat wave.

Project Aims to Protect Verde River by Connecting Credit “Sellers” and “Buyers”