01 Feb '12, 12am

A list of non-renewable energy & mineral resources essential to modern life: 23 face permanent shortages by 2030.

A list of non-renewable energy & mineral resources essential to modern life: 23 face permanent shortages by 2030.

(2) Estimated US nonrenewable materials (minerals) as a percentage of total US mineral utilization in the year 1800: US per capita mineral use in 1800 was ~1500 lbs. - http://www.mii.org/pdfs/Minerals1776vsToday.pdf . Total US energy consumption in 1800 was .47 quadrillion BTUs, all generated from biomass [wood] - http://www.eia.doe.gov/emeu/aer/txt/stb1701.xls . Given that the energy content of wood averages ~20 million BTUs per cord - http://hearth.com/econtent/index.php/articles/heating_value_wood , ~23.5 million cords of wood were used that year for “energy generation” purposes alone; this equates to ~4.43 cords/person on average, given an 1800 US population of 5.3 million - http://www.measuringworth.com/ . A cord of hardwood weighs ~5000 lbs.; a cord of soft wood weighs ~3000 lbs - http://www.csgnetwork.com/logweight.html ; assuming only 3,000 lbs./cord, the 4.43 cord...

Full article: http://www.energybulletin.net/stories/2010-04-06/increasi...

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