The primary objective of this book is to probe into the menace of air pollution in Delhi, which has emerged as the main threat to public health and the environment in the capital city. The book explores the viable solutions to the problem, examines the existing policies and programmes developed by the Government and the policy makers to address the issue, traverse the hurdles in the implementation of these policies and reveals the politics over air pollution in Delhi. It also discusses about the other highly polluted cities of the world, specifically Mexico City, which has faced environmental emergencies due to air pollution in the past, and how these cities have prepared themselves to combat the menace of air pollution, and what can be learnt from their experiences to face the same situations in Delhi. The book examines how air pollution is being addressed in the context of environmental policy frameworks and politics, and will be of use to policy makers, researchers, governmental and non-governmental agencies working to combat air pollution in major cities.