Proper noun
Earth Overshoot Day (plural Earth Overshoot Days)
(ecology) The calculated illustrative calendar date on which humanity's resource consumption for the year exceeds Earth's capacity to regenerate those resources that year.
So-called Earth Overshoot Day -- the date when humanity has used all the biological resources that Earth can renew annually -- has crept steadily earlier since the 1970s, according to the Global Footprint Network. Source: Internet