The world's most polluted capital city
BBCThe world's most polluted capital city Getty Images Smog envelopes much of Northern India in the autumn and winter months, blanketing cities in polluted air that comes with extensive health risks In Northern India, a concoction of seven different fungi could help to thin the smog that pervades the capital city with the worst air pollution in the world. The year-round average for PM2.5 pollution in New Delhi was the worst of any capital city in the world by a large margin In October and November, school children across Northern India, especially in India's capital city of New Delhi and in the vicinity around Gurugram, have to contend with frequent disruptions. Getty Images A significant proportion of New Delhi's air pollution is generated outside the city bounds by burning crop fields after harvest In 2015, crop burning was made illegal in Delhi and the states of Rajasthan, Punjab, Uttar Pradesh and Haryana – but the ban has proven hard to enforce. Nasa Earth Observatory/Lauren Dauphin The smoke from burning crop fields in autumn is visible from space, covering swathes of Northern India Companies like nurture.farm have stepped in to make the process of deploying the microbial spray much easier for farmers, offering an app where the spraying can be booked for free, as well as offering other paid agricultural services such as equipment hire.