The map highlights areas of the city that tend to get hotter than the rest on warm days – a growing concern due to climate change. Read more: https://www.kgw.com/article/tech/science/climate-change/portland-metro-heat-island-map-multnomah-washington-clackamas-county/283-3683b907-b7a1-40ef-b22c-d3bcb6f01619 Watch more The Story videos: http://bit.ly/watchTheStory Follow The Story on Twitter: https://twitter.com/TheStoryKGW Follow The Story on Instagram: https://instagram.com/thestorykgw