Environment
India tightens pollution controls as Delhi's air becomes worse
India has tightened its anti-pollution policies in Delhi and the surrounding areas, after the capital's air quality reached the worst of the season. According to an advisory from India's Environment Ministry, the Commission for Air Quality Management (CAQM)?used?stage four, which is the highest level of the Graded Response Action Plan for Delhi & surrounding areas, on Saturday evening. Central Pollution Control Board (CPCB) data revealed that Delhi's air quality on Sunday was "severe", with index readings of over 450 at a number of monitoring stations. This is up from 430 the previous day and represents the highest level so far...