This document discusses the causes and effects of air pollution. It identifies both natural sources like forest fires and volcanic eruptions as well as human sources such as burning fossil fuels, plastic, and chemicals. Burning fossil fuels to create electricity is a major human cause of air pollution. The effects of air pollution include difficult breathing, toxic air, acid rain, health problems, issues with childbirth, and climate change effects like rising temperatures and sea levels. Some of the most polluted cities in Asia are identified as Dhaka, Delhi, and Beijing. The document concludes with recommendations on actions people can take to reduce air pollution like planting trees, being more conscious of pollution, and using solar energy.