The non-profit organization Global Footprint Network has been calculating "Earth Overshot Day" every year since 1961 with the help of the so-called 'Ecological Footprint'. The Ecological Footprint is an indicator of resource consumption and the impact of human activity on the environment. Critically, however, it primarily takes into account the CO² emissions of countries and thus tends to make statements that are still too positive.
According to the Global Footprint Network report, the world's population currently lives as if it possessed 1.7 Earths. People therefore use nature 1.7 times faster than the ecosystems can generate. We are already experiencing the manifold consequences for the environment, such as climate change, species extinction or the increasing loss of vital resources like drinking water.
The researchers of the "Global Footprint Network" also determine how large a country's surface area would be neccessary in order to restore the consumed resources. Germany would need three times more land area!
The "Earth Overshot Day" is shifting forward from year to year. In 1987, the day was still December 19. Due to the global increase in consumption as well as population growth, it already fell to July 29 in 2018 and 2019. This year only due to the extraordinary Corona situation, it was set a few weeks later.
It is up to all of us to stop the unabated consumption of resources. For example, if food waste alone were cut in half across the globe, Earth Overshoot Day would be 11 days later. Cutting CO² emissions in half would push the date back 89 days.
Everybody can make a contribution to climate protection: save energy, leave the car at home more often, buy seasonal food and durable products with recycled materials, and avoid waste.
We only have this ONE earth and its resources are limited!