Environmental Science
Ecological Footprint Analysis as a Measure of Demographic Sustainability
Quick fact
As of 2022, humanity's ecological footprint was about 1.7 Earths, meaning we consume 70% more resources than the planet can regenerate each year.
Why this is interesting
If everyone lived like the average American, we'd need five Earths to sustain ourselves. But what does that really mean, and why does it depend on who we are and how many we are?