Researchers at the Lawrence Berkeley National Laboratory recently completed an economic analysis of white roofs versus their green and black counterparts. The debate over the relative merits of white versus green roofs is far from over, however.
Lidija Grozdanic shares news of a study published in the Energy and Buildings Journal that “compared three types of roofs – green, black and white – and came to the conclusion that white roofs have great economic benefits, and they are also three times more effective than the other two at fighting climate change.”
Among the findings of the report:
- Green roofs’ high installation/replacement costs outweigh their long service lives.
- Per unit area, white roofs cool the globe 3× more effectively than green roofs.
Still, earlier studies conflict with the results of the new study, as noted by Grozdanic: “Although we are excited to find out how different roofing strategies may affect climate change, one should be aware of the fact that these investigations involve a wide spectrum of factors and potential consequences far too complex for a hotheaded (pun intended) thumbs-up verdict.”
Improving South Los Angeles Through Strategic Tree Planting
The University of Southern California Urban Trees Initiative is planting 250 trees in South L.A. neighborhoods to improve shade, combat climate change, and enhance community well-being through collaboration and data-driven approaches.
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Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss
The plan would reduce visitor accommodation by 25,% resulting in 1,900 jobs lost.
North Texas Transit Leaders Tout Benefits of TOD for Growing Region
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Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.
How to Make US Trains Faster
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Columbia’s Revitalized ‘Loop’ Is a Hub for Local Entrepreneurs
A focus on small businesses is helping a commercial corridor in Columbia, Missouri thrive.
Invasive Insect Threatens Minnesota’s Ash Forests
The Emerald Ash Borer is a rapidly spreading invasive pest threatening Minnesota’s ash trees, and homeowners are encouraged to plant diverse replacement species, avoid moving ash firewood, and monitor for signs of infestation.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
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Learn the tools for implementing Universal Design in planning regulations.
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Harvard GSD Executive Education
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NYU Wagner Graduate School of Public Service