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747: How Trees Keep D.C. And Baltimore Cool
Manage episode 411635932 series 3381328
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Springtime is a great reminder of just how beautiful trees can be. Cherry blossoms and magnolias put on a gorgeous show, but trees aren’t just there to look good. They play an important role in absorbing heat, sequestering carbon dioxide, and preventing soil erosion.
Dr. Mike Alonzo, assistant professor of environmental science at American University, is using satellites to determine just how effective urban trees are at keeping neighborhoods cool. He’s been able to track changes to the tree canopy over time, and identify when during the day trees do their best cooling work.
In Baltimore, Ryan Alston with the Baltimore Tree Trust has been working with the community to help residents understand the importance of planting trees. The city has a history of redlining, which affected the number of big trees in historically Black neighborhoods, leading to major differences in how hot certain neighborhoods get in the summer.
Alonzo and Alston join Ira Flatow live on stage at George Washington University to discuss the power of urban trees.
The transcript for this segment will be available the week after the show airs on sciencefriday.com.
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