Conservation advocates said that data could be key to help map out the city’s heat. ... data from a fixed weather monitoring station at Borah Park in Boise to measure how trees can affect heat.

The more trees in a neighborhood the brighter the green — Brooklyn’s Park Slope sticks out like a neon hi-lighter. The map also features the location of neighborhood farmers markets and major ...

Brendon Haggerty with the Multnomah County Health Department shows a new heat map of Portland on Wednesday. “In areas where we see warmer spots, we can target those for tree planting for example ...