Imagine Earth has a resource “bank account” -  forests, water, energy. Your ecological footprint shows how much of that budget you spend through food, transport, electricity, and shopping. We measure it in “planets”: living sustainably means fitting into just one. Use about 0.8 planets and you draw less than nature can renew; one planet is perfect balance; 1.3 or more and we’re already in overdraft. This quick quiz will estimate your personal score in two minutes. Ready to see how many planets we’d need if everyone lived like you?

Hit Start and find out!