It’s done. We have reached it. As of today, we humans have used as much from nature in 2016 as our planet can renew in a whole year. Nothing will seem to change for many of us between today and tomorrow, but collectively we are draining Earth’s capacity to provide. Overshoot Day is a red light warning of trouble ahead — and it is flashing five days earlier than it did last year (Aug. 13); eleven days earlier than the year before (Aug.19).