How much energy does it take (on average) to produce 1 ...
Wood (from standing timber): 37MJ (830 to 1,950 watthours). Steel (from recycled steel): 615MJ (1,665 to 4,170 watthours). Aluminum (from 100 % recycled aluminum): (3,150 to 4,750 watthours) Iron (from iron ore): 2025MJ (5,550 to 6,950 watthours) Glass (from sand, etcetera): 1835MJ (5,000 to 9,700 watthours) Steel (from iron): 2050MJ (5,550 to 13,900 watthours) Paper ...