Invasive cheatgrass, reviled by Western ranchers and conservationists, has long since earned a reputation as a firestarter, making wildfires worse and more common. Same with climate change: It's well understood that climate warming is making western wildfires worse. But it’s not just cheatgrass anymore, or just a warming West: a new analysis finds at least seven other non-native grasses can increase wildfire risk in places across the country, some doubling or even tripling the likelihood of fires in grass-invaded areas.
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University of Colorado Boulder. Cooperative Institute for Research in Environmental Sciences.