A new map gives New Yorkers a relative idea of how much energy the buildings in their neighborhoods are consuming — and what it’s being used for.

The U.S. state that takes climate change most seriously—California—has unanimously approved new rules dubbed the Advanced Clean Cars program to lower carbon emissions, reduce oil dependence, mitigate health impacts from pollution, and save …

Commonwealth Edison has started a $2.6 billion smart grid, but questions remain about whether it will improve how consumers use electricity.

After years of dispute in setting the higher fuel economy standards for cars and trucks, nearly everyone involved agrees.

A question for Wal-Mart as it moves its sustainability push into the blogosphere.

A proposal from the Bloomberg administration and City Council would make it easier for property owners to add insulation to exterior walls, for example, and install awnings, skylights, green roofs, solar panels and greenhouses.

After a massive campaign by Greenpeace to get everyone’s favorite social media site to quit coal energy, Facebook has announced a new energy policy and a partnership with Greenpeace. The policy includes a goal “to power all of our operations with clean…

There are many predictions, many demands and many possibilities for future energy use and sources. ExxonMobil has just released their prediction of how energy demands will be served in the next few decades. ExxonMobil’s just-released Outlook for En…

A critic of capitalism argues that climate progress can only come through a global economic reboot.

A critic of capitalism argues that climate progress can only come through a global economic reboot.