Here are a few ways energy efficiency can improve the national security of the United States.

Here are a few ways cities could limit their negative impact on the environment.

The White House is set to pledge nearly $70 million for energy efficiency projects across the country.

In a speech earlier this month, Hillary Clinton urged Las Vegas casinos to retrofit to become more energy-efficient buildings.

Frederick, Maryland is offering tax credits to developers who build energy-efficient buildings.

Efficiency Vermont is working with local businesses to reduce the state’s peak energy use.

Several Virginia businesses were recently lauded for their environmental efforts.

The Obama administration’s Better Building Neighborhood Initiative has resulted in $730 million in energy savings.