Compara mètodes

	Metabolic Rift Analysis	Ecological Footprint Analysis
Camp	Environmental Sociology	Environmental Sociology
Família	Process / pipeline	Process / pipeline
Any d'origen	1999	1996
Autor original	John Bellamy Foster (recovering Karl Marx and Justus von Liebig)	Mathis Wackernagel & William E. Rees
Tipus	Qualitative socio-ecological framework for diagnosing metabolic rupture	Bioproductive-area accounting pipeline for human demand versus biocapacity
Font seminal	Foster, J. B. (1999). Marx's Theory of Metabolic Rift: Classical Foundations for Environmental Sociology. American Journal of Sociology, 105(2), 366-405.	Wackernagel, M., & Rees, W. E. (1996). Our Ecological Footprint: Reducing Human Impact on the Earth. New Society Publishers. ISBN: 9780865713123
Àlies	Metabolic Rift Framework, Marxian Ecological Rift Analysis, Social Metabolism Rift Diagnosis, Foster Metabolic Rift Approach	Ecological Footprint Accounting, Footprint-Biocapacity Accounting, Wackernagel-Rees Footprint, EF Analysis
Relacionats	4	4
Resum	Metabolic rift analysis is a Marxian framework in environmental sociology that diagnoses the rupture in the material exchange, or metabolism, between human society and the rest of nature under capitalism. John Bellamy Foster's 1999 American Journal of Sociology article recovered the concept from Karl Marx, who drew on the soil chemist Justus von Liebig to describe how nineteenth-century industrial agriculture broke the nutrient cycle by shipping food and fiber from countryside to city and never returning the soil's elements. Foster argued that this 'irreparable rift in the interdependent process of social metabolism' is a classical foundation for environmental sociology rather than a modern afterthought. In The Ecological Rift (2010), Foster, Clark, and York generalized the idea to the full range of planetary boundaries, showing how the same logic of accumulation that splits town from country also displaces ecological damage across space and time. The analysis treats environmental degradation not as an accident but as a structural consequence of how production is organized for profit. It is a qualitative, historical-materialist pipeline that links political economy to biophysical flows.	Ecological footprint analysis measures human demand on nature by translating the resources a population consumes and the wastes it generates into the area of biologically productive land and sea required to supply them. Introduced by Mathis Wackernagel and William Rees in their 1996 book Our Ecological Footprint, the method expresses both demand (the footprint) and supply (biocapacity) in a common unit, the global hectare, so that the two can be compared directly. When a population's footprint exceeds the biocapacity available to it, the difference is an ecological deficit, and at the planetary scale a persistent deficit signals overshoot of the biosphere's regenerative capacity. The 2002 analysis by Wackernagel and colleagues operationalized this accounting at the global level, estimating that humanity moved from using about 70 percent of the biosphere's capacity in 1961 to roughly 120 percent by the late 1990s. The carbon component, the area of forest needed to sequester fossil-fuel emissions, is typically the largest and fastest-growing share. Footprint analysis is thus a sustainability accounting tool that renders an abstract idea, living within ecological limits, into a single comparable balance sheet.