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At a global scale, footprint assessments show how big humanity's demand is compared to what Earth can renew. Global Footprint Network estimates that, as of 2022, humanity has been using natural capital 71% faster than Earth can renew it, which they describe as meaning humanity's ecological footprint corresponds to 1.71 planet Earths.
Every year, Global Footprint Network produced a new edition [3] of its National Footprint and Biocapacity Accounts, which calculate Ecological Footprint and biocapacity of more than 200 countries and territories from 1961 to the present. Based on up to 15,000 data points per country per year, these data have been used to influence policy in ...
With a world-average biocapacity of 1.63 global hectares (gha) per person (12.2 billion in total), this leads to a global ecological deficit of 1.1 global hectares per person (10.4 billion in total). [1] For humanity, having a footprint smaller than the planet's biocapacity is a necessary condition for sustainability.
Global biocapacity' is a term sometimes used to describe the total capacity of an ecosystem to support various continuous activity and changes. When the ecological footprint of a population exceeds the biocapacity of the environment it lives in, this is called an 'biocapacity deficit'.
This ecological debt is often referred to as our global 'ecological overshoot'. The data from the Global Footprint Network has been used to create the graph below, it shows that since the 1970s the global population is increasingly compromising the Earth's ecosystem. The red section of the graph indicates that the global population have been ...
A Biodiversity Impact Credit (BIC) is a transferable biodiversity credit designed to reduce global species extinction risk. The underlying BIC metric, developed by academics working at Queen Mary University of London and Bar-Ilan University, is given by a simple formula that quantifies the positive and negative effects that interventions in nature have on the mean long-term survival ...
Ecological footprint accounting, based on the biological concept of carrying capacity, tracks the amount of land and water area a human population demands for producing the biological resources the population consumes, for absorbing its waste, and for accommodating its built infrastructure, all under prevailing technology.
It can be measured by the ecological footprint, a resource accounting approach which compares human demand on ecosystems with the amount of planet matter ecosystems can renew. Estimates by the Global Footprint Network indicate that humanity's current demand is 70% [27] higher than the regeneration rate of all of the planet's ecosystems combined ...