Summary
Just under eight months into the year, humanity has already consumed its annual allotment of renewable resources, a think tank that tracks mankind's impact on Earth said Thursday.
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.
According to the group's calculations, humans used only about three-quarters of the Earth's annual resource allotment in 1961 .
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