Energy Efficiency

Sarah Laskow reports on a new study from the National Trust for Historic Preservation that confirms and quantifies the adage that reuse of a historic building is more sustainable than LEED certified new construction.

John McIlwain explores the market for energy efficient housing, and finds growth across the country.

In his new book, The Conundrum, David Owen pierces the magical thinking that has repackaged high-end luxury goods, such as hybrid cars, as virtuous and the idea that we can consume our way out of trouble.

New details and a visualization from Cornell University's winning proposal to create a "game-changing" applied sciences and technology campus on New York's Roosevelt Island.

As utilities and energy companies move towards distributed power, building owners, businesses, and developers are seeing the possibilities.

The Burj Khalifa in Dubai has one of the world's largest condensate recovery systems that diverts and reuses water from air conditioning. One World Trade Center in New York will use 30% less water and 20% less energy.

As the world population reaches 7 billion some U.S. builders are working on smaller, compact homes.

Last year, developer KB Homes began putting an Energy Performance Guide (EPG) label on every home they build. Is this an idea who's time has come?

Researchers in China have reportedly created an insulation material that can "retain and release heat according to specific temperature requirements."

Climate Central intern Ruthie Nachmany writes how one conference on energy envisions individuals taking a role in being energy efficient, while another conference prefers cities creating systems that can lead to energy efficiency.

The truth is, it works: a new report shows that energy efficiency standards placed on utilities result in less demand and greater savings.

Despite having the world's most energy efficient, least polluting auto fleet, greenhouse gas emissions from the transportation sector continue to rise in Sweden.

A 2001 study showed that we can save more oil by building more fuel-efficient cars than by expanding drilling under U.S. soil or in our oceans. Deron Lovaas sees black gold in our cities and suburbs.

Homes located near transit stops are more energy efficient than homes classified "energy efficient", according to a new study from the U.S. Environmental Protection Agency.

A new peer reviewed study reveals that housing located in compact, transit-oriented and location efficient developments are more likely to consume less energy than developments in low density suburban areas.

"Reskinning" buildings -- or adding a new facade -- is taking off in Canada and Europe.

Building owners in downtown Chicago are hoping to push forward a project aimed at creating a "smart grid" of energy-efficient and energy-producing buildings.

Stephen L. Cowell, an energy efficiency expert, says that while other careers are sputtering the business of creating savings by reducing energy consumption is going gangbusters.

Cary Lowe, Los Angeles-based attorney and advocate for energy efficiency, makes the case for the economic benefits of energy efficiency retrofits to the state of California.

In the face of a recent heat wave, New York City's smart grid stood up to the challenge and made sure that the power kept flowing.