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We should work to convert every process that uses energy to green energy. Then the issue becomes moot. Make everything electric, make all electricity production

We should work to convert every process that uses energy to green energy. Then the issue becomes moot. Make everything electric, make all electricity production renewable (or nuclear). For things that can't easily run off of batteries like intercontinental flights, use electricity to produce methane or ethanol, and accept that this is a lossy process, price it accordingly. AFAIK, one of the things that produces the most CO2, and that we're not doing very much about (or even discussing) just yet, is the production of concrete.

logtempo 3y ago
thing is, you can't beat oil energy density. And its logistic. going 100% electric is really something big, maybe too big. A good exemple is synthetic fuel: in Germany, they have really hard issues on biomass collect which is needed for "green fuel". As of today, synthesis come from coal. And we're talking about Germany,not France. France, who would need to triple its production of electricity to replace its oil consumption from cars. and I did not talked about the cropland needed for "biogas" and ethanol fuel. concrete, steel, agro-industry too...the list is long.
- snek_case 3y ago
  This is why I said we can use electricity to produce ethanol or methanol. > France, who would need to triple its production of electricity to replace its oil consumption from cars. That seems very doubtful. Do some napkin math. A Tesla Model 3 long range has a ~75KWh battery pack. That gives it an EPA range of ~550KM. If you assume that the average person drives 1/3 of that every day (generous), there's no way that you need to triple electric production to cover that.
jemmyw 3y ago
> AFAIK, one of the things that produces the most CO2, and that we're not doing very much about (or even discussing) just yet, is the production of concrete. I don't think that's true, I've seen it discussed quite a bit. It's just that there isn't an 'easy' fix, i.e. there isn't a replacement ready to go like there is with electricity production, discounting costs. Same goes for other industrial processes,

logtempo 3y ago

thing is, you can't beat oil energy density. And its logistic. going 100% electric is really something big, maybe too big. A good exemple is synthetic fuel: in Germany, they have really hard issues on biomass collect which is needed for "green fuel". As of today, synthesis come from coal. And we're talking about Germany,not France. France, who would need to triple its production of electricity to replace its oil consumption from cars. and I did not talked about the cropland needed for "biogas" and ethanol fuel. concrete, steel, agro-industry too...the list is long.

snek_case 3y ago
This is why I said we can use electricity to produce ethanol or methanol. > France, who would need to triple its production of electricity to replace its oil consumption from cars. That seems very doubtful. Do some napkin math. A Tesla Model 3 long range has a ~75KWh battery pack. That gives it an EPA range of ~550KM. If you assume that the average person drives 1/3 of that every day (generous), there's no way that you need to triple electric production to cover that.

jemmyw 3y ago

> AFAIK, one of the things that produces the most CO2, and that we're not doing very much about (or even discussing) just yet, is the production of concrete. I don't think that's true, I've seen it discussed quite a bit. It's just that there isn't an 'easy' fix, i.e. there isn't a replacement ready to go like there is with electricity production, discounting costs. Same goes for other industrial processes,