SafeSpeed wrote:
- What's the lifetime carbon cost of a human? Shouldn't we have fewer kids?
I don't know what your kids eat. Unless you mean the carbon cost of their actions, which varies
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- What's the lifetime carbon balance of a windfarm? Do they save carbon emissions?
They probably have less carbon cost than building an office block, then they generate power.
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- What's the lifetime carbon cost of photo voltaics? Can it cut emissions? Or does it produce more CO2 in production than it can save in use?
Well plants do well with sunlight, and admittedly it would be better if we could make some GM plant that can generate power from the sun. However the carbon cost of solar panneling must be less than constructing a car, and again they generate power.
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- What's the lifetime energy cost of a 'green' car? Is it worse than a conventional car?
Probably in this country where a lot of power is gnerated from fossil fuels anyway.