We're on a mid-summer break, and are re-releasing the Tempe AZ episode from a few months ago, in recognition of the extreme heat being seen in many parts of the US. We'll be back with new content next week. Extreme heat is now commonplace in Tempe, with 100 days per year over 100 degrees Fahrenheit and 30 days a year over 110. And those numbers are increasing. We interview Dr. Braden Kay, Tempe's Director of Sustainability, to learn how Tempe's is adapting while trying to change its built environment to reduce the urban heat island effect.