Child development is also affected by air pollution, climate change, and exposure to chemicals, which are emerging environmental risk factors, said an international team, including researchers from the Centre for Chronic Disease Control (CCDC), New Delhi. Child development is also affected by air pollution, climate change, and exposure to chemicals, which are emerging environmental risk factors, said an international team, including researchers from the Centre for Chronic Disease Control (CCDC), New Delhi. Health Health News, Wellbeing Tips, Diseases, Treatment and Nutrition | The Hindu