Timeline - Waterpolo 3, by Mario Arroyave, 2013. © Mario Arroyave, courtesy the artist and Artemisa Contemporary Latin American Art, New York.


Volume XI, Number 3 | summer 2018


A 2018 study of sediment cores taken from the bed of Walden Pond found signs of “cultural eutrophication”: human urine released into the pond since it became a popular swimming spot in the 1920s has altered the water chemistry and could turn the “beautiful clear lake into a slimy green stew.” The study was reported in the Boston Globe with the headline “Please Stop Peeing in Walden Pond, Researchers Beg.”

Seek not water, only show you are thirsty, / That water may spring up all around you.

—Rumi, c. 1260