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Ecological overshoot expressed in terms of how many Earths equivalent of natural resources are consumed by humanity each year. Ecological overshoot is the phenomenon which occurs when the demands made on a natural ecosystem exceed its regenerative capacity. Global ecological overshoot occurs when the demands made by humanity exceed what the ...
When the giant flightless birds called moa were overexploited to the point of extinction, [5] the giant Haast's eagle that preyed on them also became extinct. [6]The concern about overexploitation, while relatively recent in the annals of modern environmental awareness, traces back to ancient practices embedded in human history.
Previously known as Ecological Debt Day, Earth Overshoot Day is the day when humanity has exhausted nature's budget for the year. For the rest of the year, society operates in ecological overshoot by drawing down local resource stocks and accumulating carbon dioxide in the atmosphere. The first Earth Overshoot Day was December 19, 1987. [11]
This is a list of countries by ecological footprint. The table is based on data spanning from 1961 to 2013 from the Global Footprint Network's National Footprint Accounts published in 2016. Numbers are given in global hectares per capita. The world-average ecological footprint in 2016 was 2.75 global hectares per person
For people, "overshoot" is that portion of their demand or ecological footprint which must be eliminated to be sustainable, or the delta between a sustainable population and what we currently have. [1] [2] Excessive demand leading to overshoot is driven by both consumption and population. [3] Population decline due to overshoot is known as ...
Biocapacity is used together with ecological footprint as a method of measuring human impact on the environment. Biocapacity and ecological footprint are tools created by the Global Footprint Network, used in sustainability studies around the world. Biocapacity is expressed in terms of global hectares per person, thus is dependent on human ...
Overshoot: The Ecological Basis of Revolutionary Change, a 1980 book by William R. Catton, Jr. Ecological overshoot, when the demands made on a natural ecosystem exceed its regenerative capacity; Overshoot (population), when a population exceeds the environment's carrying capacity; Overshoot (signal), when a signal exceeds its steady state value
These were the references William R. Catton used in a 2008 "retrospective" [8] portraying his paradigm shift into environmental sociology. William Catton came of age in sociology when the major debates were about social-only theoretical orientations (structural-functionalism or consensus theory versus Marxism or conflict theory), and methodology (quantitative versus qualitative). [9]