Earth Overshoot Day (EOD), previously known as Ecological Debt Day, is the calculated illustrative calendar date on which humanity’s resource consumption for the year exceeds Earth’s capacity to regenerate those resources that year.
The term “overshoot” represents the level by which human population overshoots the sustainable amount of resources on Earth. When viewed through an economic perspective, EOD represents the day in which humanity enters environmental deficit spending. EOD is calculated by dividing the world biocapacity (the amount of natural resources generated by Earth that year), by the world ecological footprint (humanity’s consumption of Earth’s natural resources for that year), and multiplying by 365, the number of days in a year. Earth Overshoot Day is calculated by Global Footprint Network and is a campaign supported by dozens of other nonprofit organizations. Information about Global Footprint Network’s calculations and national Ecological Footprints are available online.
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Changes in carbon emissions and forest biocapacity from January 1st to Earth Overshoot Day 2021 were evaluated. The research team concluded a 6.6% increase in the global Ecological Footprint compared to 2020. As reported by IEA, the global pandemic induced lockdowns caused an initial sharp drop on CO2 emissions in 2020. However, emissions increased again during the second half 2020. At the end of the year, total emissions were reported to be 5.8% lower than 2019 emissions due to the global pandemic. Combined with the most recent data from the Global Carbon Project, we estimate a 6.6% increase in the carbon Footprint for 2021 compared to the year prior. The second notable change was the effect of Amazon deforestation and degradation on global forest biocapacity. The research team estimates a 0.5% decrease in global forest biocapacity.
The downloadable research report documents these drivers. The result of all data extrapolations and analyzed factors concluded that Earth Overshoot Day 2021 lands on July 29.
In Nederland viel de Dag al op 12 april.
Earth Overshoot Day