Shwetha Sunil And Alpana Sarma Bloomberg

As winter sets in, the air hanging over north India thickens with smoke from burning fields, blocking out the sun and making it hard to breathe. This year, that could spell disaster for the country's battle against the pandemic.

As winter sets in, the air hanging over north India thickens with smoke from burning fields, blocking out the sun and making it hard to breathe. This year, that could spell disaster for the country's battle against the pandemic.