With rising affluence and world population projected to reach 9.3 billion by 2050, can we live sustainably?
Humanity's ecological footprint is large…and growing. We are already using essential resources, like fresh water, at an unsustainable rate. Will we be able to meet the basic needs and desires of 9.3 billion people in 2050 without jeopardizing the ability of future generations to meet their needs? There is no precise answer to that question, but by some estimates we could need more than two Earths by 2050. And that is not sustainable.
We will need 1.8 Earths to support the population by the year 2050.
2050 population based on your growth factors
U.N. Projected Population for Earth
There are many factors that go into determining whether we can live sustainably. This simplified calculator uses four key variables—population, lifestyles, energy mix, and agricultural productivity—to give us a better understanding of what will be needed to sustain projected population growth in various regions of the world. For purposes of this interactive exercise, the resources required to meet basic human needs are expressed in units of land.