At Washington State University’s Irrigated Agriculture Research and Extension Center in Prosser, Wash., Ben-Min Chang and Esther Hernández Montes use a infrared gas analyzer to see how wine grape vines are responding to the smoky conditions in the Northwest.

At Washington State University’s Irrigated Agriculture Research and Extension Center in Prosser, Wash., Ben-Min Chang and Esther Hernández Montes use a infrared gas analyzer to see how wine grape vines are responding to the smoky conditions in the Northwe