“India’s pollution problem, which came into the limelight after Delhi’s air was declared even filthier than Beijing’s last year, is even more monumental than we thought. Toxic air spouting out from burning trash and exhaust pipes has taken its toll on the facades of some of the country’s sacred heritage sites. The impact of air pollution on the iconic Taj Mahal—whose grand marble edifice is slowly turning brownish-yellow—has been covered by the media for several years now. But over the last few years, many more sites have joined the queue [the Lotus Temple in Delhi, the Golden Temple in Amritsar, the Charminar monument in Hyderabad, among others]—their carefully carved and crafted marble pillars of centuries past turning yellow, brown and black.” Quartz. Read it on delhiair.org.