News & Events

Submit your abstract for the 3rd International Conference on Countermeasures to Urban Heat Islands (IC2UHI) in Venice, Italy - deadline: January 31, 2014

December 10, 2013

In October 2014, the Heat Island Group will be hosting the 3rd International Conference on Countermeasures to Urban Heat Islands (IC2UHI).

Global Cool Cities Alliance's Shickman discusses cool roofs in Baltimore on NPR's "Midday" show

October 30, 2013

According to the latest Abell Foundation report, cool roofs are becoming the hot new trend in sustainable architecture nationwide. These roofs are designed to reflect the sun’s rays and limit heat absorption. And environmentalists are looking at the practice as a way to help fight climate change.

EETD’s Early Technological Successes—Energy-Efficient Windows

October 17, 2013

The 40th anniversary of the founding of the Environmental Energy Technologies Division at Berkeley Lab is November 1, 2013.

Every Thursday during October, we’ll look back at a significant energy-efficient technology developed by EETD and its research partners.

This Week

EETD has developed energy-efficient technologies that are all around you, saving energy in your home and workplace. One of those is the low-e, or low-emissivity, energy-efficient window.

Raymond Weitekamp, Arman Shehabi and Stephen Selkowitz in Windows Lab

Hotter Summers Mean More Health Risks In Urban Heat Islands

September 29, 2013

PORTLAND – On hot summer days, 74-year-old HelenRuth Stephens doesn't dare leave her apartment. Not to get the mail or take out the trash.

"You don't do it because you'll be breathless by the time you get back," she says.

She suffers from asthma and chronic obstructive pulmonary disease. Both affect her lungs. Hot weather drains her energy, she says, and makes it hard for her to breathe.

EETD Researcher Named a 2013 Star of Building Science by Building4Change

September 26, 2013

Building4change, a website that addresses to sustainability, innovation and best practice in the built environment, has named 13 people as Stars of Building Science Virtual Academy of Excellence for the year 2013. One of them is Stephen Selkowitz of the Environmental Energy Technologies Division. Cited as an “internationally recognized expert in window technologies, façade systems and daylighting,” Selkowitz was also the Head of EETD’s former Building Technologies Department for many years... Read More

Stephen Selkowitz

Heat Island Group's Ben Mandel talks cool pavements on Australia's "Beyond Zero" radio show

September 23, 2013

The Heat Island Group's Ben Mandel spoke with Australian radio show Beyond Zero, hosted by Matt Grantham and co-hosted by Chris Jensen (University of Melbourne), about the benefits of cool pavements and LBNL's work to promote cool schoolyards.

Daylighting Window Film Shows Potential to Significantly Reduce Lighting Energy Use in Buildings

September 04, 2013

Daylighting is the strategy of admitting light from the sun and sky to reduce use of electric lighting in buildings. Since lighting energy use represents 13 percent of the total primary energy used by buildings in the United States or 5.42 quadrillion Btus in 2010, these technologies can play a significant role towards meeting U.S. and state energy-efficiency and greenhouse gas emission reduction goals.

Outdoor view of the windows testbed facility.

Valley air officials aim to cool down decades-old smog problem

August 15, 2013

In sweltering September 2011, Fresno could have used more trees. Temperatures climbed, winds died and lung-searing ozone spiked the season's highest readings on three days.

Worse yet, all three peaks broke the one-hour federal ozone standard between 3 p.m. and 4 p.m. on weekdays when children were outside after school.

Durability + Design webinar on cool pavements features Heat Island Group researchers

July 30, 2013

It is now common to hear about record high temperatures across U.S. cities. Cities are especially susceptible to extreme heat owing to a phenomenon known as the "urban heat island effect." As this effect attracts increased attention and research, new ways are emerging to help cool sweltering cities, which will also save energy and reduce greenhouse gas emissions. One way to counteract the urban heat island effect and cool communities is to cool your pavements. What are cool pavements?

Green Parking Council webinar explores cool pavements for more sustainable parking lots

July 16, 2013

The Green Parking Council held a webinar on cool pavements as a sustainability measure for parking lots. The webinar featured a presentation on cool pavements by Heat Island Group researchers Haley Gilbert and Ben Mandel. View the recorded webinar below:

The Weather Channel interviews Heat Island Group researchers on cool pavements as a heat island mitigation strategy

June 19, 2013

On Friday, June 21, Heat Island Group researchers George Ban-Weiss and Ben Mandel appeared on the Weather Channel to discuss Berkeley Lab's efforts to demonstrate the heat island mitigation and air quality benefits of cool pavements.

Related Video: https://www.youtube.com/embed/U-7q55gDxqQ

Register for the 2013 AIVC Joint Conference in Athens, Greece (25-26 September 2013)

June 01, 2013

The 34th AIVC Conference, titled "Energy conservation technologies for mitigation and adaptation in the built environment: the role of ventilation strategies and smart materials," will take place 25-26 September 2013 in Athens, Greece. This Joint Conference will focus on ventilative cooling, and is co-sponsored by TightVent, the European Cool Roof Council, and Venticool.

Heat Island Group scientists explain urban heat island effect and cool roofs

May 27, 2013

As a part of Berkeley Lab's ongoing Science Video Glossary, scientists from the Heat Island Group discuss the team's research.

Watch Project Scientist George Ban-Weiss explain the causes and effects of the urban heat island effect, as well as Berkeley Lab's efforts to mitigate it and keep cities cooler:

Watch other videos featuring Berkeley Lab researchers in the Berkeley Lab Science Video Glossary.

Heat Island Group's Art Rosenfeld highlighted in Reuters feature on white roofs

April 15, 2013

(Reuters) - Converting the world's roofs from dark colours to reflective white would cancel the warming effect of 1 billion tonnes of carbon dioxide each year for the lifetime of the roof, according to former California Energy Commissioner Arthur Rosenfeld.

We’ve got white roofs, so how about pastel pavement?

April 01, 2013

OK, team, you know this concept. Cities are full of dark surfaces that absorb and capture energy from sunlight, creating islands of hot, hot heat. We all get sweaty, we turn up the A/C, that makes the city hotter, everyone suffers. This is why it's a good idea to paint roofs white.

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