Some places in the world still use indoor fires for cooking and heating, like Mongolia, Africa and India, and they have a lung health crisis there, with astrono

Some places in the world still use indoor fires for cooking and heating, like Mongolia, Africa and India, and they have a lung health crisis there, with astronomical rates of athsma, pneumonia, and lung cancer. We do have some resilience to mild amounts of occasional smoke, which keeps us from dying immediately, but we know long term exposure does damage, and the levels we’re seeing in the mega-fires has been far beyond what we’re evolved to breathe. Even the typical pollution in urban areas is measurably bad for health.