Extreme Heat: What City-Dwellers Need to Understand - Vivek Shandas | #71

When you think of threats from heat, your mind probably goes to wildfire threats. And don’t get me wrong, having lived through wildfires firsthand, they’re not to be underestimated! But the headline-grabbing nature of fires might overshadow the fact that plain old heat can be a real threat to your health. In fact, extreme heat is the leading cause of weather-related deaths in the U.S.; more than hurricanes and floods.

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And this is pronounced in urban spaces, where a deadly cocktail of heat-exacerbating building materials and careless urban planning has created a situation in which, during heat events, cities can become especially dangerous. Today’s guest is an expert in the phenomenon of urban heat islands, areas that are significantly warmer than surrounding rural areas. Tree cover is one of the key interventions, but unfortunately, US cities are actually losing tree cover. A study from the Forest Service in 2018 found that US cities were losing trees at a rate of 36 million per year. And worse, what Vivek has found in his research is that many of the hottest neighborhoods in cities—those that already lack sufficient tree cover—are also losing trees at the fastest rates. While I absolutely hate this fact, it’s why I especially appreciate Vivek’s approach, weaving together sustainability, environmental justice, and urban planning—and doing so in such a clear-eyed, accessible way.

I know this is not light fare, but given that we’re also potentially heading into what experts have literally called a “super-duper” El Niño, which they believe will produce new record-setting temperatures, I feel strongly that you need to familiarize yourself with this subject so that you’re best able to prepare and help do what you can to advocate for better heat planning in your hometowns.

BIO: Vivek Shandas is a researcher, professor at Portland State University, and advisor helping cities navigate climate and public health challenges. Over two decades, he has worked with governments and communities to improve urban environments through data-driven, equitable strategies. He has authored 100+ journal articles and five books, and his work on urban heat, air quality, and environmental justice has been featured in major outlets including The New York Times and National Geographic. In 2023, he was appointed to the USDA’s National Urban and Community Forestry Advisory Council. He is also the lead scientific advisor to CAPA Strategies and enjoys the mountains and water of the Pacific Northwest, where he lives with his family.

CREDITS: This podcast is produced & edited by Adam Labrie & me, Jesse Damiani. Adam Labrie also edited the video version, which is available on YouTube.

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