A clean tech company in Portland, Oregon is taking strides to make sure that your windows take your breath away, not your warmth.

City leaders across the United States see that energy efficiency means not only carbon reduction but also good government and sound economic policy

Bellevue, WA has been quietly earning accolades for its achievements in sustainability, clean energy and energy efficiency. What's next for this leading city?

Redmond, WA is walking its clean energy talk, allocating $820,000 to reduce the city's energy consumption and carbon footprint.

Would you buy a car without knowing how fuel-efficient it is?  What about a building? Check out how Portland is making buildings' energy-efficiency data public, and why that's expected to reduce carbon emissions and save money for both owners and tenants.

Oregon has a lot of forests, and great conditions for growing long-lived trees, and those forests store a lot of carbon. Aggressive and unsustainable logging of those forests can contribute heavily to greenhouse gas emissions and climate change. 

Microsoft’s campus in Redmond, WA is effectively a city of 500 acres and more than 125 buildings, with a daytime population of 58,000.

Despite its huge successes, Washington’s Energy Independence Act (better known by it’s ballot number, I-937) seems to fly under the radar. This anonymity is about to change.

China announces nationwide carbon market to start next year, leading CEOs call for pact to reduce carbon pollution to zero by 2050, electric bus unveiled with 200-mile range, and more stories of the week in clean energy solutions.