One of India's top doctors has told ITV News that the country is facing an unprecedented health crisis because of air pollution.
ITV News Science Correspondent Alok Jha has just returned from Delhi - the most polluted city in the world - where he was working on a series of dispatches about climate change ahead of international talks later this month.
Professor Neelam Kler told him that India is heading towards a "health disaster" because of a growing number of illnesses and diseases linked to poor air quality.
Three people an hour are said to die from air pollution-related illness in India, according to medics.
Watch the first of Alok Jha’s “Climate in Crisis” reports from India on Tuesday's ITV Evening News and News at Ten.
The conflict between economic development versus environmental damage represents a huge challenge for developing countries like India.
India's Environment Minister tells ITV News there has to be a "just and equitable" agreement on climate change, ahead of a major summit.
Alok Jha travelled to India to see first hand why the country's rapid coal rush will be a key concern at climate summit.