WASHINGTON, Aug. 1, 2019 — When wildfires break out on hot, windy days, they pose a serious threat to people and the environment. This week on Reactions, learn how firefighters are using fertilizer to keep dangerous blazes at bay:

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Reactions is a video series produced by the American Chemical Society and PBS Digital Studios. Subscribe to Reactions at http://bit.ly/ACSReactions and follow us on Twitter @ACSReactions.