Humans have used up more of Earth’s resources than it can regenerate within one year as of Aug. 1, 2018, according to the Global Footprint Network. This year's Earth Overshoot Day is the earliest ever. Last year’s Earth Overshoot Day fell on Aug. 2. The date, which was previously known as Ecological Debt Day, has occurred steadily earlier since 1971. That year, the date fell on Dec. 21. “We are using 1.7 Earths,” according to the Global Footprint Network’s website. “We use more ecological resources and services than nature can regenerate through overfishing, overharvesting forests and emitting more carbon dioxide...