Smoke billows from Jinnah International Airport in Karachi, Pakistan, June 9, 2014. (Photo by Athar Hussain/Reuters)

Two elderly men smoking pipes of opium on a terrace in Korea. (Photo by Bert Hardy/Picture Post/Getty Images). August 1950

A Hindu holy man, or sadhu, smeared with ashes smokes marijuana in a chillum during the Shivaratri festival on the premises of Pashupatinath Temple in Kathmandu, Nepal, March 7, 2016. Hindu holy men from Nepal and India come to this temple to take part in the Maha Shivaratri festival. Celebrated by Hindu devotees all over the world, Shivaratri is dedicated to Lord Shiva, and holy men mark the occasion by praying, smoking marijuana or smearing their bodies with ashes. (Photo by Navesh Chitrakar/Reuters)

A cow is silhouetted grazing next the smoke of a chimney of an incineration plant in Lausanne at sunrise on November 19, 2021. (Photo by Fabrice Coffrini/AFP Photo)

Plumes of smoke rise from the snow covered volcano Villarrica, in Pucon, Chile on December 7, 2023. (Photo by Cristobal Saavedra Escobar/Reuters)

A general view shows smoke and volcanic ashes billowing from volcano Cotopaxi in Pedregal, Ecuador, late 07 October 2015. (Photo by Jose Jacome/EPA)