We use resources to live. Air to breathe, water to drink, food to eat. Some don’t need much more than that, but others need much more resources. They need a lot of energy to heat their large house or they need lithium from Africa for the battery of their electric car. One leaves a small footprint and the other a large one. All people on earth leave an average footprint of 2.9 gha (global hectares). That means that the earth is not enough to compensate for resource consumption. We leave permanent damage that gets bigger and bigger.
But there is hope. The average footprint of Europe, North America and Australia combined is 7 gha. We could significantly reduce this without significantly affecting our prosperity.
Here you can calculate your own footprint: