Jen Green has written more than 100 books for children on natural history, geography and the environment.

• 1: Why is clean air important?2: How is the air kept clean naturally?3: How do people cause air pollution?4: How does transport cause air pollution?5: What countries produce air pollution?6: What makes air acidic?7: What new chemicals cause air pollution?8: What causes indoor pollution?9: How is air pollution affecting Earth’s climate?10: How will climate change affect the planet?11: What can be done to tackle air pollution?12: How can I help to make the air cleaner?13: Your project14: Glossary15: Answers16: Further information17: Index

Jen Green has written more than 100 books for children on natural history, geography and the environment.

• 1: Why is clean air important?2: How is the air kept clean naturally?3: How do people cause air pollution?4: How does transport cause air pollution?5: What countries produce air pollution?6: What makes air acidic?7: What new chemicals cause air pollution?8: What causes indoor pollution?9: How is air pollution affecting Earth’s climate?10: How will climate change affect the planet?11: What can be done to tackle air pollution?12: How can I help to make the air cleaner?13: Your project14: Glossary15: Answers16: Further information17: Index

Jen Green has written more than 100 books for children on natural history, geography and the environment.

• 1: Why is clean air important?2: How is the air kept clean naturally?3: How do people cause air pollution?4: How does transport cause air pollution?5: What countries produce air pollution?6: What makes air acidic?7: What new chemicals cause air pollution?8: What causes indoor pollution?9: How is air pollution affecting Earth’s climate?10: How will climate change affect the planet?11: What can be done to tackle air pollution?12: How can I help to make the air cleaner?13: Your project14: Glossary15: Answers16: Further information17: Index