China says it has instructed its airlines not to comply with European Union rules requiring carriers to pay to offset their emissions.

Although projections suggest that the costs of installing solar energy may outweigh the benefits in the near term, a report recommends that New York State embrace the technology.

Greenhouse gas emissions from palm oil-based biodiesel are the highest among major biofuels when the effects of deforestation and peatlands degradation are considered, according to calculations by the European Commission. The emissions estimates, whi…

The U.S. Environmental Protection Agency (EPA) ruled on Friday that palm oil-based biofuels will not meet the renewable fuels standard due to carbon emissions associated with deforestation.

The U.S. Environmental Protection Agency (EPA) ruled on Friday that palm oil-based biofuels will not meet the renewable fuels standard due to carbon emissions associated with deforestation.

A startup pins its hopes on research showing that a genetically modified strain of bacteria can break down the sugars in brown seaweed, or macro-algae, to produce ethanol.

Exxon Mobil will pay the state of Montana $300,000 in cash and spend $1.3 million on environmental projects there.

Coda Holdings will make minor changes to battery packs for its cars and sell them individually or grouped together, with the idea of selling them to homeowners to store solar energy and to help businesses reduce their peak loads.

Factory-rated output is not woods-of-Maine output, the author discovers as he adds up the kilowatt hours.

The Pennsylvania Farm Show’s famed butter sculpture finds a new use this year, returning to a dairy farm to be processed into biogas.