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How many vehicles can the earth sustain?

Green Car Congress

One of the hallmarks of the good life in developed countries is the freedom to move about as we choose in personal vehicles. Consequently, demand for personal vehicles has recently skyrocketed and this trend is likely to continue in the near future. ? persons per vehicle to the projected 2050 world population of 9.8

Vehicles 210
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Study concludes that sugar cane-based biorefineries producing ethanol and electricity could power a global auto fleet of hybrids and EVs using only 4% of available cropland

Green Car Congress

In their study, they assess the benefits and drawbacks of the joint production in a sugar cane-based biorefinery—using technology that is currently available and cost-competitive—of ethanol and electricity for fueling privately-owned automobiles.

Fleet 230
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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

Automobile manufacturers were given tax breaks to produce cars that ran on hydrous ethanol, and, by 1980, every automobile company in Brazil was following this lead. By the mid-1980s, three quarters of the cars manufactured in Brazil were capable of running on sugarcane-based hydrous ethanol. 40 CFR ยง 80.27