Screen Shot 2015-11-03 at 4.15.46 PMITV 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.” ITV News. Watch it on

Climate in Crisis: ITV News investigates ahead of Paris talks