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This is not a thread about whether GW is real or not, but the fact that many other factors about being 'green' are usually not taken into account.

From the story:

A saloon (sedan) car or even an 4x4 that is fully occupied may be responsible for less greenhouse gas per kilometer travelled per person than a suburban train that is a quarter full, the researchers calculate.

http://news.yahoo.com/s/afp/20090608/sc ... nlifestyle

I have stated it before and will say it again.

To me, anything that has a battery in it, is simply NOT GREEN.

Discuss.

Agree, the more times the end product is separated from work being done to provide the power, the less efficient.


For example efficiency and power are lost at each step of the below



Normal car

Gas >> combustion >> pistons moved >> transmissions spins >> wheels rotate = car moves


Electric car

Natural gas >> Combustion >> turbine spins >> generator spins >> Electricity transformed to power lines >> electricity transformed to sub station >> Electricity to transformer outside house >> Electricity to car batteries >> Electricity from car batteries to electric car motor >> wheels rotate >> car moves


Now which do you think is more efficient??

Imagine the losses incurred from having power plants far away to satisfy NIMBYs...

Airfoilsguy wrote:Agree, the more times the end product is separated from work being done to provide the power, the less efficient.


For example efficiency and power are lost at each step of the below



Normal car

Gas >> combustion >> pistons moved >> transmissions spins >> wheels rotate = car moves


Electric car

Natural gas >> Combustion >> turbine spins >> generator spins >> Electricity transformed to power lines >> electricity transformed to sub station >> Electricity to transformer outside house >> Electricity to car batteries >> Electricity from car batteries to electric car motor >> wheels rotate >> car moves


Now which do you think is more efficient??

We don't care about all that !!! Don't you understand that the planet is melting????

Signed, Al Gore and Disciples

AndesSMF wrote:This is not a thread about whether GW is real or not, but the fact that many other factors about being 'green' are usually not taken into account.

From the story:

A saloon (sedan) car or even an 4x4 that is fully occupied may be responsible for less greenhouse gas per kilometer travelled per person than a suburban train that is a quarter full, the researchers calculate.

http://news.yahoo.com/s/afp/20090608/sc ... nlifestyle

I have stated it before and will say it again.

To me, anything that has a battery in it, is simply NOT GREEN.

Discuss.

What about compressed air powered cars? They have those out now, and though the technology is still in it's infancy, it is pretty promising, they even have fixed the issues of possible explosions by having the tank be built in a specific way. There is also solar power (though I think when that cell is no longer of carrying a charge, it may become a pretty nasty issue too.) Though with an Air Powered car, you still have to use electricity to power the air compressor.

Do agree with you on batteries, so much lead in the damn things, I might as well have things powered by a gas powered engine. Though they are working on hydrogen cells, which are supposed to be much more cleaner than the tradition battery.

LOT 737-300 wrote:What about compressed air powered cars?

Easier to create compressed air with renewable energy and store it, isn't it? Gavin was the one who told me that one.

LOT 737-300 wrote:Though they are working on hydrogen cells, which are supposed to be much more cleaner than the tradition battery.

But manufacturing that hydrogen takes up a LOT of energy...

I am sure the milage that all of those priuses get is fine, but I always wonder about all the heavy metals that are in the batteries that are now being manufactured and will eventually be destroyed.

LOT 737-300 wrote:Though they are working on hydrogen cells, which are supposed to be much more cleaner than the tradition battery.

There are Hydrogen cars out there (Honda FCX Clarity is the best known), the issue is Hydrogen is a b!@#h to store. Find a way to store it efficiently, cheaply, and safely, and you have the supposed end all to car fuel.