Wildfire smoke presents dangers to health because it can harbor toxic chemicals and tiny particles. “Once inhaled, these particles can affect the lungs and heart and cause serious health effects ...

Graphics show how toxic air affects your health Midwesterners are seeing smoke again: How you can prepare your home. See the data behind climate change's devastating impact on California wildfires ...

Reuters collates and checks this data by hand, and the figures largely come from state, county and territory government/public health department websites. Deaths include both confirmed and ...