Blogs Efficiency

What Is America’s Most Fuel-Efficient Airline?

What Is America’s Most Fuel-Efficient Airline?

  • Published: Sep 11th, 2013

Group ranks major airlines based on fuel efficiency, but there are many unknowns about how airlines burn fuel.

You Asked, We Answered: Response to 2013 Cars Report

You Asked, We Answered: Response to 2013 Cars Report

  • Published: Sep 5th, 2013

Report authors respond to reader comments and questions regarding our 2013 Climate-Friendly Cars report.

Wind Power Has its Limits, But It’s Not the Sky

  • Published: Sep 9th, 2012

Could existence of wind turbines slow the planet’s winds to the point where they couldn’t generate any more energy?

Image of the Day: Greening Roofs With White Paint

  • Published: Jun 30th, 2012

White roofs in cities could prevent the world from emitting billions of tons of CO2, according to the White Roof Project.

Tree-Hugging, Organic-Buying Spoof Hits Sunny Spot

  • Published: May 10th, 2012

if you're trying to make a case for people to take advantage of solar power, a little humor might just go a long way.

New Breakthrough in Solar? Maybe. Possibly. Or Not.

  • Published: Dec 21st, 2011

New study finds a way to double the efficiency of solar cells while cutting the cost. Is this finally the solution we have been looking for?

Two East Coast Cities Set Sights On Energy Efficiency

  • Published: Jul 8th, 2011

Recent conferences in Philadelphia and New York take two different approaches to improving cities' energy efficiency.

Weekly Climate Science Roundup: Feb. 22 to 28

  • Published: Mar 1st, 2011

Summary of the previous week's most noteworthy climate science papers.