
Air pollution impacts heritage sites too. In September, a report pointed to black crusts on the walls of the Red Fort. In 2018, the Supreme Court said that the Taj Mahal had turned yellow and greenish-brown due to air and water pollution.

Air pollution impacts heritage sites too. In September, a report pointed to black crusts on the walls of the Red Fort. In 2018, the Supreme Court said that the Taj Mahal had turned yellow and greenish-brown due to air and water pollution.