sam3611 wrote:
Ethanol is not a good alternative fuel. Ethanol comes from Corn. You have to grow Corn. The more Corn we use, the more places we need to plant it in. Thus leading to an even greater destruction of the rainforest.
Eh. I don't see it as rainforest destructive, but it won't help much (if at all) in terms of Green House Gases. You still have to grow the corn (which requires equipment that emits CO2). You still have to make the ethanol (releases more CO2). Then, when you burn it, guess what you release. That's right, more CO2. I'm wanting to think that, gallon for gallon, it might release about as much CO2 as gasoline, but I think the overall "life-cycle" of the fuel releases less. Either way, ethanol is not meant to save the planet so much as it is to pull us away from foreign oil. I don't think a planet friendly fuel is as easy to create as a planet friendly way of burning that fuel. Hybrids are a step in the right direction*. Of course, try telling that to the "I drive an SUV that seats 12" soccer mom crowd.
*Hybrids don't get substantially better mileage in "highway" situations, so for someone that drives 100 miles/day on the interstate, they don't offer much benefit (some non-hybrid cars can get better "highway" mileage than some hybrids). The benefit comes in "city" driving. That's where the regenerative braking and other "energy recovery" systems shine. It's why Hybrids, counter-intuitively, get better "City" mileage than "Highway" mileage.
Edit: In my "more planet friendly way" thing, I somehow forgot mass transit. Seriously, THAT is one heck of a way to help the planet. Transportation plans that include mass transit can REALLY cut down on emissions. Think about it, if 500 people, that would have otherwise each driven a car, ride a bus or train, that's 500 cars worth of emissions not going into the air (and 500 fewer cars to clog up the road). Granted, there's the emissions from the transportation method used, but that's generally far less than would be emitted from the 500 cars.
Using the same "logic" of the "If you support the war in Iraq, you should be over there fighting!" crowd, I propose that everyone who thinks we should adopt an alarmist approach to Global Warming should take public transportation.