The Conversation: What Earth Day means when humans possess planet-shaping powers
„Today you can travel to the furthest part of the Arctic Ocean, to the highest point of the Caucasus Mountains, to the remotest spot in the Australian outback and find the unmistakable signs of human activity. Chemical and industrial traces are now present in every pinch of soil and every drop of water. Transported by high-altitude atmospheric winds, millennia-old patterns of precipitation, and the tire treads of fossil-fuel-powered vehicles, the imprints of humanity reach all corners of Earth.“