If you're seeing smoke in Southern Florida, it may be because scientists at Everglades National Park have been intentionally setting fires, in an attempt to control the invasive Old World climbing fern (Lygodium microphyllum). Actually, according to this article from The News Press, land managers are spraying the ferns with herbicide, burning them, then burning them again when they resprout. While they still have hope that a biological control will be found, the scientists realize that if they wait too long, there will be little left to save. (Bonus points to The News Press for using the scientific name.)
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