13th January 2025
Bio capacity (the metric used to calculate Earth Overshoot Day) includes both the biological productive land and sea area that provides the resources we need and the Earth’s capacity to absorb the waste produced including pollution.
In this context waste includes sewage, greenhouse gas emissions, excess fertilisers that leak into the water system, exhausts and brake dust from vehicles etc. The limits on the capacity of the Earth to absorb waste and to keep the environment healthy, is something we often forget. Producing waste is just as much about consumption as cutting down trees or catching fish. To live within the resource constraints of the Earth, we need not just to consume less but also to produce less waste.