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People Cause Most U.S. Wildfires

Researchers also found that human-ignited fires tripled the length of the wildfire season.

This image originally appeared in the NASA Earth Observatory story People Cause Most U.S. Wildfires.

NASA Earth Observatory map (top) by Joshua Stevens, using fire data courtesy of Balch, J. et al. (2017). NASA Earth Observatory image (bottom) by Jesse Allen, using data from the Level 1 and Atmospheres Active Distribution System (LAADS). Caption by Adam Voiland.

Published March 7, 2017
Data acquired November 12, 2016