Researchers in Taiwan have discovered that gold nanoparticles can create luminescence in tree leaves, opening the possibility of glowing trees that cold act as streetlights.
This research could create an energy-efficient way to light streets.
"Upon learning of the discovery, Assistant Prof. Shih-Hui Chang said: 'Light emitting diode (LED) has replaced traditional light source in many display panels and street lights on the road. A lot of light emitting diode, especially white light emitting diode, uses phosphor powder to stimulate light of different wavelengths. However, phosphor powder is highly toxic and its price is expensive. As a result, Dr. Yen-Hsun Wu had the idea to discover a method which is less toxic to replace phosphor powder which can harm human bodies and cause environmental pollution. This is a major motivation for him to engage in the research at the first place.'"
FULL STORY: Gold nanoparticles turn trees into streetlights
Growing Green: How Parks and Trees Shape Honolulu’s Future
Honolulu is expanding its urban tree canopy through community-driven park revitalization efforts, emphasizing the environmental, social, and cultural benefits of trees in creating a more resilient and equitable city.
Rethinking Fire-Resistant Landscaping: Which Trees Should We Plant?
Fire experts emphasize the need to replace highly flammable trees like Mexican fan palms and eucalyptus with fire-resistant species such as oak, sycamore, and toyon, while also strengthening home fire defenses to reduce wildfire risks in California.
Urban Forestry as a Pathway to Equity and Opportunity
Urban forestry job training programs are creating economic opportunities for underrepresented individuals while addressing workforce shortages and advancing tree equity in communities most impacted by environmental disparities.
Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.
National Parks Layoffs Will Cause Communities to Lose Billions
Thousands of essential park workers were laid off this week, just before the busy spring break season.
Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50
A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.
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Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto
The Tesla Cybertruck was recalled seven times last year.
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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.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
EMC Planning Group, Inc.
Planetizen
Planetizen
Mpact (formerly Rail~Volution)
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research
NYU Wagner Graduate School of Public Service