We've got a grand total of 36,794,240,000 acres of dry land on the planet and 6,706,993,152 people as of July 2008. That comes out to just under 4 1/2 acres apiece.
We each need 4 acres of land a year to produce our food etc.
And we are rendering lots of this land sterile by our farming techniques, we are at the limit.
And we are seeing it, we see it in the Co2 levels, the ocean plastic levels, the deforestation and aquifer levels. The habitat destruction and species extinction.
Earth Overshoot Day marks the date when humanity’s demand for ecological resources and services in a given year exceeds what Earth can regenerate in that year. We maintain this deficit by liquidating stocks of ecological resources and accumulating waste, primarily carbon dioxide in the atmosphere. Earth Overshoot Day is hosted and calculated by
Global Footprint Network, an international think tank that coordinates research, develops methodological standards and provides decision-makers with a menu of tools to help the human economy operate within Earth’s ecological limits.
To determine the date of Earth Overshoot Day for each year, Global Footprint Network calculates the number of days of that year that Earth’s biocapacity suffices to provide for humanity’s Ecological Footprint. The remainder of the year corresponds to global overshoot. Earth Overshoot Day is computed by dividing the planet’s biocapacity (the amount of ecological resources Earth is able to generate that year), by humanity’s Ecological Footprint (humanity’s demand for that year), and multiplying by 365, the number of days in 2015:
About Earth Overshoot Day | Earth Overshoot Day
Today, more than 80 percent of the world’s population lives in countries that are running ecological deficits, using more resources than what their ecosystems can renew.