Stuart Staniford kommenterer på Food Security: The Challenge of Feeding 9 Billion People.
Jeg hadde skannet den noen dager før og funnet den uinteressant -- den er holdt i svært generelle termer, så generelle at det hele blir nærmest meningsløst. Men Stanifords kommentarer er interessante; det er også hans to år gamle TOD-essay The Fallacy of Reversibility (som han linker til i en kommentar).
"Food Security:..." refererer til Forecasting Agriculturally Driven Global Environmental Change (Science / Tilman et al.)
som har litt mer kjøtt på beina...
During the first 35 years of the Green Revolution, global grain production doubled, greatly reducing food shortages, but at high environmental cost (1-5). In addition to its effects on greenhouse gases (1, 6, 7), agriculture affects ecosystems by the use and release of limiting resources that influence ecosystem functioning (nitrogen, phosphorus, and water), release of pesticides, and conversion of natural ecosystems to agriculture. These sources of global change may rival climate change in environmental and societal impacts (2, 8). Population size and per capita consumption are assumed to be the two greatest drivers of global environmental change. Humans currently appropriate more than a third of the production of terrestrial ecosystems and about half of usable freshwaters, have doubled terrestrial nitrogen supply and phosphorus liberation, have manufactured and released globally significant quantities of pesticides, and have initiated a major extinction event (2-4, 8-10).
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