Trees don't like to breathe wildfire smoke, either – and they’ll hold their breath to avoid it

(The Conversation) - When wildfire smoke is in the air, doctors urge people to stay indoors to avoid breathing in harmful particles and gases. But what happens to trees and other plants that can’t escape from the smoke?They respond a bit like us, it turns out: Some trees essentially shut their windows and doors and hold their breath.As atmospheric and chemical scientists, we study the air quality and ecological effects of wildfire smoke and other pollutants. In a s