News & Events

Cool colors for cars could improve fuel economy, reduce emissions

October 11, 2011

Berkeley Lab features a Heat Island Group study on the potential benefits of cool-colored car shells.

View the feature here.

How Central Park cools the entire planet

September 16, 2011

Past work by Heat Island Group Postdoctoral Fellow George Ban-Weiss, describing how Central Park and other urban green spaces contribute to global cooling, has been featured on various platforms in recent weeks.

Scientists From Around the World Attend Berkeley Workshop on Cool Roof Research

August 16, 2011

Researchers, government agencies, and roofing manufacturers from around the world gathered in Berkeley last month (July 28-29, 2011) to discuss the latest research on cool roofs. These solar reflective materials reduce energy use, and help cool the planet by reflecting sunlight to outer space. Their use has begun to soar in markets around the world thanks to their economic and environmental benefits.

Cool Roof members smile for a group photo

Cool Roofs Appear in Doonesbury; EETD Staff Corrects the Science

August 11, 2011

If you read the Doonesbury comic strip on Sunday, August 7, you might have seen Michael Doonesbury and Bernie discussing cool white roofs. Cool roofs are an energy-efficient technology developed here in the Environmental Energy Technologies Division of Lawrence Berkeley National Laboratory (Berkeley Lab).

Graphic graph showing the heat lost and gained by different land environments

White roofs star in "Doonesbury" on August 7, 2011

August 05, 2011

Click here to read the "Doonesbury" comic that is all about white roofs.

International Workshop on Advances in Cool Roof Research

July 28, 2011

The International Workshop on Advances in Cool Roof Research is a two day workshop that is focused on the specific protocols, standards, & policies for accelerated aging.

Doubletree Hotel at the Berkeley Marina, in Berkeley California

Thursday, July 28th - Friday, July 29th.

Click here to download presentations

International Workshop of Cool Roof Research July 28-29 in Berkeley

June 29, 2011

What: International Workshop on Advances in Cool Roof Research: Protocols, Standards & Policies for Accelerated Aging

When: Thursday, July 28 - Friday, July 29

Where: Doubletree Hotel at Berkeley Marina, Berkeley, California

This two-day workshop is sponsored by the Heat Island Group at Lawrence Berkeley National Laboratory, Oak Ridge National Laboratory, Concordia University, and the US Department of Energy.

Cool Roof International Workshop logo

New Heat Island Group study investigates regional variations in cool roof efficacy

June 29, 2011

Heat Island Group researchers Dev Millstein and Surabi Menon publish a paper on the increasing prominence of cool roofs and photovoltaic arrays, as well as their effects on regional climate. Read the full article here.

Berkeley Lab and Oak Ridge to Develop Next-Generation Cool Roofing Materials

April 27, 2011

Washington, DC — The U.S. Department of Energy today announced that Oak Ridge National Laboratory (ORNL) and Lawrence Berkeley National Laboratory (LBNL) have joined with Dow Chemical Company as part of a Cooperative Research and Development Agreement to fund key research that will help develop the next generation of cool roof technologies in the U.S.

Aieral photo of lab

Cool-Colored Roof Materials Display Present at San Jose Green Vision Unveiling

December 06, 2010

Cool-colored roofing materials, developed by researchers at the Environmental Energy Technologies Division, are showcased at a new outdoor display of green technologies just opened in the city of San José just across the street from City Hall.

Berkeley Lab staff members Haley Gilbert, Doug Davenport, and Vipin Gupta

Secretary Chu Announces Steps to Implement Cool Roofs at DOE and Across the Federal Government

July 27, 2010

U.S. Department of Energy Secretary Steven Chu today announced a series of initiatives underway at the Department of Energy to more broadly implement cool roof technologies on DOE facilities and buildings across the federal government. Cool roofs use lighter-colored roofing surfaces or special coatings to reflect more of the sun's heat, helping improve building efficiency by reducing cooling costs and offsetting carbon emissions.

Photo of cool roofs in use

Cool World: A Modest Proposal to Cool the Planet by Cooling the Neighborhood

December 16, 2008

Hashem Akbari and Surabi Menon, scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), and Art Rosenfeld, California Energy Commissioner, Professor Emeritus at the University of California, Berkeley, and former Berkeley Lab scientist, have proposed a "Cool World" plan that would use white roofs, and solar-reflective roofs of other colors, to reduce greenhouse gas emissions and help delay atmospheric heating effects.

A building with cool roof technology

California Energy Commissioner Arthur Rosenfeld Honored with Innovation Award

October 22, 2008

The Economist magazine has named California Energy Commissioner Art Rosenfeld recipient of one of this year's Innovation Awards. The weekly British magazine awards Innovation awards in several areas; Rosenfeld won the award in the "Energy and the Environment" sector. A former Berkeley Lab scientist, Rosenfeld was director of the Center for Building Science (Environmental Energy Technologies Division), and he is a Professor Emeritus in the Physics Department at UC Berkeley.

Portrait of Art Rosenfeld

Back to The Times: Revisiting The New York Times Headquarters Building Upon Its Completion

October 18, 2007

Employees of The New York Times Company (The Times) began occupying their new headquarters on the west side of Manhattan in mid-2007. Three years before this milestone, The Times's facility team had approached building scientists at Berkeley Lab's Environmental Energy Technologies Division (EETD), looking for help. They were searching for reliable and affordable technologies, not yet available in the marketplace, to regulate daylight in the new building.

Photo of the outside of the new NY Times headquarters

A Dawning Day for Energy-Efficient Electrochromic Windows

January 05, 2007

To help EC windows realize their potential to save energy in California and throughout the U.S., DOE and the California Energy Commission funded Berkeley Lab's Environmental Energy Technologies Division to conduct a three-year field test of EC windows in a realistic office-building setting.

Photo of an Advanced Windows Testbed room

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