Air pollution • English Conversation Questions

What are some of the main sources of air pollution?
How does air pollution affect human health?
What are some of the most polluted cities in the world?
What are some of the ways that individuals can reduce their own air pollution?
How do governments and organizations work to reduce air pollution?
What are some of the effects of air pollution on the environment?
What are some of the solutions being proposed to reduce air pollution?
How does air pollution vary by location and time of year?
What are some of the economic costs of air pollution?
What are some of the ways that technology is being used to combat air pollution?
How does climate change interact with air pollution?