"If you think of the whole year as a total budget, it turns out we have used it up by August 13," Mathis Wackernagel, president of Global Footprint Network, told AFP.
Referred to as Earth Overshoot Day, it is the estimated date when humanity's demand on nature for the year exceeds what Earth can regenerate annually.
Global Footprint Network estimated that humans would need the resources produced by just over one-and-half Earths to keep up with what we will use this year.
Humanity is overusing resources, for example, by pumping more carbon dioxide into the air than the planet can adsorb, over fishing or hacking down more trees than nature can regenerate each year.
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According to the group's calculations, humans used only about three-quarters of the Earth's annual resource allotment in 1961. By the 1970s, economic and population growth sent Earth into overshoot.
Some countries already feeling the pinch are places like Haiti, Syria and Afghanistan, all troubled countries which cannot produce everything they need, and cannot afford to buy it either.
"If you don't have the resources to support yourself it gets extremely tight," Wackernagel said.
Global Footprint Network sees the climate talks in Paris later this year -- where the UN is aiming to get a global agreement to reduce greenhouse gasses -- as a chance to change.