Earth Overshoot Day, previously known as Ecological Debt Day, comes earlier than ever before because "we are emitting more carbon dioxide into the atmosphere than our oceans and forests can absorb, and we are depleting fisheries and harvesting forests more quickly than they can reproduce and regrow," WWF said in a statement.
Earth Overshoot Day marks the date in a year when humanity’s demand for ecological resources exceeds what Earth can regenerate in that year.
"In less than eight months, we used more natural resources than the planet is able to produce in a 12 month period. For the remainder of 2017, we will be living on resources borrowed from future generations," the world's largest conservation organisation said.