professor of horticulture
Steve Hallett is an author and associate professor at Purdue University, College of Agriculture, in the Department of Botony and Plant Pathology. He has also taught at McGill University and the University of Queensland.
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Millions are going to die of starvation and malnutrition... Food production will decline and food prices will rise when diesel (oil) and fertilizer (natural gas) become prohibitively expensive. The disastrous depletion of soil and water resources will become abundantly clear when we cannot afford to prop up production artificially.
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Cellular systems, ecosystems, and civilizations are, at base, thermodynamic systems. ...The system uses energy, eventually releasing it as useless heat. ...there is one vital difference between natural systems and human systems: natural systems receive a fixed energy input that never varies. If we could set a strict limit on energy use, we could build a human system that is just as stable as an ecosystem.
America does not have to rely on vast volumes of oil and natural gas to make food. ...It has to get smarter. Dedicated, hard-working, ethical, and ingenious farmers ...show us it can be done. ...Another very promising trend in many countries is the reemergence of urban agriculture, community gardens, and backyard gardens.
We don't know exactly when out fossil fuels will run out... but by the end of the century, our oil and natural gas supplies will be virtually non-existent, and limited coal supplies will be restricted to only a handful of countries. ...We are at the peak of a remarkable two-hundred-year glitch in the history of civilization and are about to embark on the descent. The coming changes will be earth-shattering.
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We seem to have quite a few problems: global climate change, peak oil, overpopulation, collapsing fisheries, desertification, wealth inequality, species extinctions, freshwater shortages, hapless governments, deforestation, disease epidemics, and agricultural failures top the list. ...our civilizations have been in similar situations before ...a long list of civilizations from the Maya to the Romans all collapsed. The precedent is set...