Climate change is making it harder to grow the key beer ingredient. So vertical farming company Aerofarms figured out how to grow hops, now being used for Goose Island’s new beer. Most of the U.S. farms that grow hops, a key ingredient in beer, are in the state of Washington. And as climate change continues—with more heat waves like one that hit the Pacific Northwest last June, and extreme droughts like the region is currently experiencing, and more wildfires—it’s likely going to get more difficult to grow the crop.