Coal Hubbert peak theory

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although observers believe peak coal further out peak oil, hubbert studied specific example of anthracite in us, high grade coal, production peaked in 1920s. hubbert found anthracite matches curve closely. hubbert had recoverable coal reserves worldwide @ 2.500 × 10 metric tons , peaking around 2150 (depending on usage).


more recent estimates suggest earlier peak. coal: resources , future production (pdf 630kb), published on april 5, 2007 energy watch group (ewg), reports german parliament, found global coal production peak in few 15 years. reporting on this, richard heinberg notes date of peak annual energetic extraction coal come earlier date of peak in quantity of coal (tons per year) extracted energy-dense types of coal have been mined extensively. second study, future of coal b. kavalov , s. d. peteves of institute energy (ife), prepared european commission joint research centre, reaches similar conclusions , states coal might not abundant, available , reliable energy source in future .


work david rutledge of caltech predicts total of world coal production amount 450 gigatonnes. implies coal running out faster assumed.








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