Washington (GGM) Analysis | September 14, 2021 by author and climate journalist Noreen Wise
Many decision makers in our towns as well as local businesses and corporate office parks are aware of the albedo effect and apply the principles. We can see this with our own eyes as we drive through our towns and cities. Large sports arenas and convention centers seem to glow in the sun, many with their white exteriors and white roofs. I hiked up a mountain over the weekend and was startled to look out and see the bright white church steeples, metallic silver domes covering silos, and a few other gleaming white rooftops on buildings dotting the rural landscape. Another excellent example of the albedo effect principles being applied all around us is the widespread use of white roofs on public school buses in communities across the country. My county in Virginia has white-topped school buses.
In 1992, Brunswick County, North Carolina decided to run a pilot program to gauge the effectiveness of white roofs on school buses to lower the temperature. They’d learned about the white tops being used in California and Florida. California had begun applying albedo principles to school buses 20 years earlier. The Brunswick County pilot ran from August through December that year. At the conclusion, they found that the white roofs:
- lowered the temperature by 10 degrees
- lowered the temperature by 17 degrees during peak hours
- and only lowered the temperature by 3 or 4 degrees in the winter
Heart of the Matter. Chair of the House Select Committee on the Climate Crisis, Kathy Castor (FL-D) said at a recent hearing, “We are all dealing with the devastating consequences of a rapidly warming planet. In the past 5 years, about 4,000 Americans have died from extreme wether events. Every year we lose about 700 Americans to heat related deaths.” Experts have gone on record stating officially that heat has a direct negative impact on our health.
Chelsea, Massachusetts has taken protecting the health and well-being of school children to the next level. According to WBUR in Boston, Chelsea Massachusetts just finished installing two white roofs on their two public middle schools this past July 2021. Their objective was to lower the heat in the classrooms, as well as the area surrounding the school. Chelsea is an oppressive heat island, North of Boston, across form Logan airport and is considered one of the hottest cities in Massachusetts. In addition to lowering the heat in the classroom for the students, according to WBUR, the Superintendent, Almi Abeyta, is also looking forward to the lower cost of electricity that will free up some money in the school budget.
Chelsea elementary schools are up next for the white roofs. Additionally, the city planner, Ben Cares, explained they also plan to replace the asphalt with a lighter material.
I’m personally and professionally very excited about the two white roofs reducing carbon emissions and also having two more buildings added to the growing collection around the world that will help reflect the sun’s energy and make up for the shrinking icecaps. August 20, 2021 was yet another alarming global warming red flag. It rained for the first time in recorded history on Greenland’s summit. According to the Sierra Club, 337,000 square miles of Greenland’s ice sheet, experienced surface flooding and 7 billion tons of water flooded the summit.
Active measures such as these — switching to white roofs on buildings and buses, and lighter ground surfaces to reduce deadly heat — are what every community should be rushing to do to save lives in this new high heat era. We have the ability to lower the heat. We must act.
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Yes. White surfaces lower the heat. Thank you 😊
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