Earth Overshoot Day is the date when humanity’s demand for ecological resources exceeds what the Earth can regenerate in that year
Since 1971, this date has continuously moved forward. But what is more important than the exact date is the magnitude of ecological overshoot: we are currently using 1.75 Earths to maintain our lifestyles (that is, we behave as if we had another Earth at our disposal). How is this possible? Because we are using 75% more resources than the Earth can regenerate, and also pump out wastes – including carbon dioxide into the atmosphere. For each year, the Global Footprint Network calculates the number of days the Earth’s biocapacity can provide for humanity’s Ecological Footprint.
Our massive demand for resources is limited by the availability of our planet’s biocapacity to regenerate them. However, demand is outstripping supply. Ensuring that a healthy planet can support us now and in the future, requires protecting the Earth’s life-support systems and reducing human demand. Our economies need to shrink.
Right now, only a very small amount of GDP benefits those who manage and care for the planet. Our planet’s forests, diverse landscapes, oceans, and lakes are its life support system. This is under extreme pressure. Without it, nothing is possible. We all depend on the health of our planet’s biological resources – the web of life. Healthy forests, fertile soil, clean air and water, and living oceans provide us with food and health and keep the Earth livable. This includes regulating the climate by absorbing our carbon emissions.
By moving the date 6 days each year, humanity can be out of overshoot before 2050.
But how can we move this date so that Overshoot Day becomes Undershoot Day? Here are some resources, solutions, and visions:
Healthy Planet and Biosphere
Reforesting 350 million hectares of forest would move the date of Overshoot Day by 8 days. Saving the biosphere requires conservation, restoration, and regeneration. Visit the Power of Possibility platform to check out more solutions for the biosphere and to #MoveTheDate of Earth Overshoot Day!
See also:
- Half-Earth project: Half-Earth is a call to protect half the land and sea in order to manage sufficient habitat to reverse the species extinction crisis and ensure the long-term health of our planet. Protecting half of the planet’s biocapacity would secure about 85% of biodiversity.
- WWF: Age of Change – explore aspirational solutions for change in a beautiful films series.
- The Great Transition Initiative is an online forum of ideas and an international network for the critical exploration of concepts, strategies, and visions for a transition to a future of enriched lives, human solidarity, and a resilient biosphere.
- Gaianism. Gaianism is a religious philosophy that grants the living Earth (Gaia) its rightful place at the center. Humans are not the pinnacle of evolution but just a small (and not necessarily essential) part of the living Earth.
- The Earth Charter: transition to sustainable ways of living founded on a shared ethical framework
Energy/Economy
The Carbon Footprint makes up 60% of humanity’s Ecological Footprint. Reducing the carbon element of the Ecological Footprint by 50% would move Overshoot Day by 93 days. Decarbonizing the economy is our best prospect to address climate change. It would also greatly improve the balance between our Ecological Footprint and the planet’s renewable resources. Check out more solutions here.
See also:
- Tipping Point: The True Story of “The Limits to Growth”
- The Great Simplification – Full Movie
- Energy Blindness and more by Nate Hagens
- CASSE – Center for the Advancement of the Steady State Economy.
- Sell Your Stocks and Enjoy the Slide
- The Age of Energy Disruptions – Webinar
- The Climate-Change Trip to Abilene. Climate change is not the biggest problem facing the world. It is a symptom of the much larger problem of overshoot.
- Modernity is incompatible with planetary limits: Developing a PLAN for the future
- Too Many Rich Folks
- Stanford study finds high energy use provides little benefit for health and well-being in richer nations
- Calculate your organization’s emissions – for small and medium-sized businesses
- The Carbon Map
Population
If every other family had one less child and would delay parenthood by two years, by 2050 we would move Overshoot Day 49 days. The United Nations projects that by 2100, 7.3 to 15.6 billion people will be living on Earth. It matters for humanity and the planet how many of us there are. The more people, the less planet there is. See more solutions here.
Also, check out:
- Debunking Common Beliefs Around Population Matters (available from August 10, 2023)
- Being Free Means Getting Climate Reparations Right: But Not Everyone Is Onboard – OpEd (available from August 9, 2023)
- World Population Day: Harnessing Entertainment Education to Address The Rights of Women & Girls
- To Advance Humanity and Save Nature We Need a Common Agenda
- Paul Ehrlich on Environment, Population, and a Lifetime Journey through Science and Politics
- To restore nature, we must invest more in our children
- The imaginary world of Earth4All’s low population projections
- Population growth is the main driver of increased carbon emissions, study finds
- CBS Documentary: Scientists say planet in midst of sixth mass extinction, Earth’s wildlife running out of places to live
- An ecologically sustainable future requires addressing both population and consumption
- Do three Pacific islands provide lessons for achieving a sustainable human population?
- The adults celebrating child-free lives
- The Secret War on Natural Rights—and Children | Opinion
- Five myths about population, aging, and environmental sustainability
- SMALLER FAMILIES AND AGEING POPULATIONS – Silver linings not silver burdens
- Influencing politicians to act on population trends: an example from Sweden
- Thailand’s success story – Family planning with creativity and humor
- Population Toxification, Part I – How we learned not to talk about human numbers
- Population Toxification, Part II – How family planning lost its way
- State abortion bans create new governmental obligations for children
- The Human Overpopulation Atlas
- The Paris Agreement is failing; we need a new approach
- How we became more than 7 billion – humanity’s population explosion, visualized
Food and other Consumption
Half of Earth‘s biocapacity is used to feed humans. Reducing global meat production by 50% by replacing these calories with vegetarian sources would move Overshoot Day by 21 days. Cutting global food waste by half would move the date by another 13 days. Find more solutions here.
Also, check out:
- The Great Simplification #69 – Robert Lustig: “Processed Food, Metabolism, and The Ills of Society”
- ‘No kill’ meat, grown from animal cells, is now approved for sale in the U.S.
- The Reality of Feeding the World’s People – A MAHB Dialogue with Jane O’Sullivan, University of Queensland
- Rethinking Food Systems
- Agroecology – a contribution to food security?
- Our food system isn’t ready for the climate crisis
- Food crisis: Europe burns equivalent of 15 million loaves of bread every day in cars
- Reclaiming traditional, plant-based, climate-resilient food systems in small islands
- Replacing animal agriculture and shifting to a plant-based diet could drastically curb greenhouse gas emissions, according to new model
- Growth in human population and consumption both need to be addressed to reach an ecologically sustainable future
- Why you should go animal-free: 18 arguments for eating meat debunked
- Tips to Reduce Food Waste
- Measuring the Ecological Impact of the Wealthy: Excessive Consumption, Ecological Disorganization, Green Crime, and Justice
- National responsibility for ecological breakdown: a fair-shares assessment of resource use, 1970–2017
- Nudging interventions on sustainable food consumption: a systematic review
Infrastructure /Cities
Driving 50% less worldwide and replacing one-third of car miles with public transportation and the rest by cycling and walking would move Earth Overshoot Day by 13 days. See more solutions here.
See also:
- About 80% of Europe’s surface area is shaped by land use in cities, agriculture and forestry
- Cities are fundamentally at odds with environmental quality and safety, right? Not so fast.
- Three pioneering cities, one sustainable future: This is how our lives will change if cities realize their climate goals
- Keeping cities cool on a warming planet
- European cities revive tram networks to cut transport emissions
- Metropolis meltdown: the urgent steps we need to take to cool our sweltering cities
- Webinar on Whole Life Carbon Part 1 – Digital Tools for Green Building Design
- The thin green line: Scientists must do more to limit the toll of burgeoning infrastructure on nature and society
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The views and opinions expressed through the MAHB Website are those of the contributing authors and do not necessarily reflect an official position of the MAHB. The MAHB aims to share a range of perspectives and welcomes the discussions that they prompt.