Earth Overshoot Day falls on July 29

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.
In 2021, it falls on July 29.

To determine the date of Earth Overshoot Day 2021, Global Footprint Network combined the most reliable data and formed the most reasonable assumptions to assess humanity’s resource situation.

Changes in carbon emissions, forest biocapacity and other factors that could impact global biocapacity or the Ecological Footprint from January 1 to Earth Overshoot Day 2021 were evaluated. The main drivers were the carbon Footprint (increased 6.6% from 2021) and a decrease in global forest biocapacity (reduced 0.5% from 2021).

For more details, check out the downloadable research report explaining how the date of Earth Overshoot Day was calculated.

Councillor Susan Aitken, Leader of Glasgow City Council, announces the date of Earth Overshoot Day 2021.

Explore Solutions to #MoveTheDate

Thriving lives within the means of our planet are not out of reach. Plenty of solutions exist in five major areas
for improving sustainability: planet, cities, energy, food, and population.


How we help nature thrive


How we design and manage cities


How we power ourselves


How we produce, distribute, and consume food


How many of us there are

Can we live in balance with the Earth?

Discover, champion, & share existing solutions that accelerate the shift to one-planet compatible thriving.

Explore solutions

Join our newsletter list!

Sign Up

Earth Overshoot Day By the Numbers

million years ago life first evident on Earth
increase in world population since 1970
decline in average population size of vertebrate species since 1970
of humanity’s Ecological Footprint is carbon

Meet our partners

blue Global Footprint Network logo

Earth Overshoot Day is an initiative of Global Footprint Network, an international research organization that is changing the way the world measures and manages its natural resources. The date of Earth Overshoot Day is calculated with data from Global Footprint Network’s National Footprint and Biocapacity Accounts, available for free at