What's The Leading Cause Of Wildfires In The U.S.? Humans Listen· 2:55

What's The Leading Cause Of Wildfires In The U.S.? Humans Listen· 2:55
New research suggests people cause as many as 84 percent of all wildfires. And humans are these starting fires where and when nature normally doesn't — at times when forests are often too wet to burn easily or at places and times when lightning isn't common.

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