The Ecological Footprint adds up all the ecological services people demand that compete for space. It includes the biologically productive area (or biocapacity) needed for crops, grazing land, ...

So says Australian physicist Graham Turner ... and invested in technologies to regulate the expansion of humanity’s ecological footprint. Prominent economists disagreed with the report ...

Ecological overshoot is measured using ecological footprint analysis, which assesses humanity’s total demand on nature’s services over a one-year period compared to the capability of biologically ...