
Asphalt parking lots reach 160°F, creating urban heat islands and turning vehicles into lethal ovens. Children can die from heatstroke in 30 minutes.
Parking lots are major contributors to the urban heat island effect. Dark asphalt absorbs solar radiation, reaching surface temperatures of 140-160°F. This excessive heat radiates into the surrounding environment, raising city temperatures by 1-10°C compared to rural areas, increasing energy costs for cooling, and worsening air quality.
Parked vehicles act like greenhouses, trapping solar radiation. Research shows that 80% of temperature rise occurs within the first 30 minutes, and cracking windows has negligible effect. Children's bodies heat 3-5 times faster than adults. Core body temperature of 104°F causes organ failure. Over 1,000 children have died since 1998.

See how quickly your car becomes deadly. Select your vehicle color and parking type to simulate real-time interior temperature rise.
Based on peer-reviewed research: 80% of temperature rise occurs within the first 30 minutes. Cracking windows has negligible effect. Data from McLaren et al. (2005) and Grundstein et al. (2017).
Drag the slider to compare thermal imaging of traditional asphalt parking versus sustainable green parking with tree shade. The temperature difference is dramatic.


Research Source: Thermal imaging data based on studies by Onishi et al. (2010), Scott et al. (1999), and Moretti et al. (2022). Tree shade can reduce asphalt surface temperatures by up to 20°C (36°F).
Calculate the cost, temperature reduction, and return on investment for different cooling strategies. Enter your parking lot size to see instant estimates.
Enter your parking lot size and click Calculate to see detailed cost estimates and ROI projections.
Sustainable parking infrastructure can dramatically reduce temperatures, save lives, and create healthier cities.

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Demand action on parking lot heat islands
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