That's a startling stat that's hard to appreciate even after pondering maps of U.S. population density like this one: Add metro Dallas-Fort Worth, Houston, Philadelphia, Washington, Miami ...

Christy have spent several years developing a novel method that quantifies, for the first time, average UHI warming effects related to population density. Their study is titled "Urban Heat Island ...

Population density data has been visualized in a million ... "While I’m a huge fan of heat maps, I felt that sometimes the nuanced differences between colours are imperceptible by the human ...