August 2, marks Earth Overshoot Day, the day humans exceed the amount of resources Earth can generate to sustain the population for the entire year.
The date every year is calculated by comparing the total yearly consumption by humans — also known as our ecological footprint — with Earth’s ability to regenerate natural resources in the same year.
According to an independent think-tank, Global Footprint Netword, we currently require 1.7 Earths to sustain our demands
In 1969, the first year in which the global footprint was calculated by a private organisation, the global ecological footprint was in sync with the biocapacity and Earth could sustain our demands for just over the entire year.
Since then, Earth Overshoot Day has gradually been advancing. In 2001, Earth Overshoot Day fell in October, while it advanced to September in 2009. Last year, Earth Overshoot Day fell on August 3, while in 2015 it fell on August 5.
According to Global Footprint Network if we delay Earth Overshoot Day by 4.5 days every year, we could return to living within the means of one Earth by 2050