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RE: Energy/Carbon Balance
I'm betting on a mix of electric cars for commuting, and biodiesel for long hauls with cellulostic ethanol spackeling the gaps.
Gasoline will still rule the pleasure boating/fishing world. Diesel boat engines are good for long-haul, low speed, and power. But--it's still a two and four-stroke gasoline powered world that gets you on plane and hauling boat and anglers at high rates of speed. even mixed Ethanol-gasoline (over E-10) has been tried, and causes far too many problems. Ethanol loves to absorb water--and guess where boats live?
Electric boat engines exist--and not just trolling motors. But they're low-speed and take many batteries.
Gasoline will rule..
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