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What We Do

What is Sustainability?



The ability for a species to survive in perpetuity without depleting the resources nor damaging the environment in which it inhabits.

I = P X A

Impact = Population x Affluence

Humanity’s impact (I) on the planet is equal to the number of People (P) multiplied by their Affluence (A). A person's and or nation's affluence (wealth) indicates how much resources - energy, materials, and technology they can potentially use which defines the level of their economic activity. 

So how do we know if our global economic activity is sustainable or unsustainable?

There are a numerous scientific organizations that measure and assess our demand on nature like Natural Capital ProjectGlobal Footprint Network, Millenium Ecosystem Assessment, and World Resources Institute to name a few.

According to one organization, Global Footprint Network, 7.7 Billion people are consuming far more resources than the earth can naturally renew and emitting far more wastes than it can absorb. They state we need the equivalent of over an 1.7 Earths at our current level of economic activity to be sustainable.

Global  Affluence (A), economic activity or consumption must largely be reduced by half if 7.7 billion people are to live sustainably and allow for the abundance and diversity of life to flourish.

So based on 7.7 billion people what do I need to do to live sustainably?

Land: The average global citizen uses the equivalent of what 7 acres of land (Americans 20 acres) can provide us for all of our resource needs. Each of us need to reduce our consumption of goods and services where we use a maximum of 3 ½ acres.

Emissions: The average global citizen emits 5 tons of CO2 a year (Americans 18-20 tons) from our lifestyle choices. We need to reduce our consumption of goods and services to where we emit 2.5 tons of CO2 a year.

Income or GDP:  Global GDP is roughly 86 Trillion Dollars. With 7.7 billion people, the average global citizen consumes and produces goods and services of approximately $11,000 a year (Americans $60,000) . We need to reduce our consumption to a global average per person of $5500 to live sustainably.

What does this sustainable lifestyle look like?

One-Room Apartment: 12'x12' in Size

  • Minimal Plumbing
  • Minimal Electricity (for a handful of small appliances)
  • No Central Air, Heat or Hot Water
  • No Clothes Washer, Dryer or Dishwasher
  • A Plant-Based Diet
  • Never Driving in a Car
  • Never Flying in a Airplane


Are you willing to live sustainably?

Currently 4 billion plus or minus people live at or below this lifestyle, and they are fighting everyday to improve their lives as measured by their income and wealth, and the consumption of more goods and services. The roughly 3.5 billion living above this lifestyle have shown little interest in reducing their wealth and consumption habits to the degree necessary to live sustainably.

Which do you think is easier, more practical, feasible and effective? Getting billions of people in scores of different countries, from different cultures, political ideologies and economies to voluntarily and drastically reduce their material standards of living by as much as 50% to 90%,  OR reduce the number of future consumers?

There have been many successful initiatives by countries and their leadership in promoting sustainability through small families, all in the context of human rights, all voluntarily. Come learn more about overshoot and help us advocate for a safe, just, prosperous and real sustainable future for us and all earth’s creatures.