Earth Overshoot Hypothetical


Consumption of new resources has been banned until January 2024...

Green Square Library
355 Botany Road

Date & time

Friday, 24 March 2023, 2:30 PM - 4:00 PM

The SUPPLY CHAIN SUSTAINABILITY SCHOOL is hosting this free event.

During this workshop our panel and attendees will explore this hypothetical:

"As of today, 24 March 2023, all people and entities in Australia are prohibited from adding to the demand of our ecological footprint until 1 January 2024. This is when the Earth will catch up to the demand we've placed on it since 1 January this year.

"This means an immediate restriction on  
    • the consumption of plant-based food and fiber products, livestock and fish products, 
    • the consumption of timber and other forest products, 
    • 'green field' development of housing, infrastructure, agriculture or mining, and
    • emitting carbon dioxide emissions from fossil fuels."

About Earth Overshoot Day

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.

Just as a bank statement tracks income against expenditures, Ecological Footprint accounting measures a population’s demand for natural ecosystems’ supply of resources and services.

On the demand side, the Ecological Footprint measures an individual or a population’s demand for plant-based food and fiber products, livestock and fish products, timber and other forest products, space for urban infrastructure, and forest to absorb its carbon dioxide emissions from fossil fuels.

On the supply side, a city, state, or nation’s biocapacity represents its biologically productive land and sea area, including forest lands, grazing lands, cropland, fishing grounds, and built-up land.

A country’s overshoot day is the date on which Earth Overshoot Day would fall if all of humanity consumed like the people in that country.

If all of humanity consumed like Australians, humanity’s demand for ecological resources and services would have exceeded what Earth can regenerate by the end of 2023 on 23 March 2023. This is Australia's Overshoot Day. 

About the venue

Green Square Library and Plaza was constructed by School Fellow John Holland Pty Ltd and has been certified by School Fellow, Green Building Council of Australia, with Green Star 5 Star Design and 6 Star As Built ratings. There is a recycling station to drop off batteries, mobile phones, light bulbs and small electronics on the lower ground floor, near the service area. Located next to Green Square train station and major bus routes.

Directions and transport

This is a face-to-face event only. No live-streaming options will be available.

This is a zero-waste event. Please BYO pen, notebook, travel mug and/or water bottle. 

No prior learning or knowledge is required. 

Non-interactive elements of the program may be available to Supply Chain Sustainability School Members after the event. 


Economy, Land (biodiversity), Sustainable Procurement, Sustainable Construction, Circular economy (materials, waste)
Australia, Local Government, Construction, Property Services
90 mins

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