It seems that the Al smelter generates lots of CO2, so greenhouse effects might just be moved closer to hydropower plants... :-) http://en.wikipedia.org/wiki/A

It seems that the Al smelter generates lots of CO2, so greenhouse effects might just be moved closer to hydropower plants... :-) http://en.wikipedia.org/wiki/Aluminium_smelting http://en.wikipedia.org/wiki/Aluminium_smelting Edit: It would be interesting to see how much Al (not total weight of the system) is used/km. According to wikipedia there should be about 1.5 mol CO2/CO per mol Al created (depends on how the process is tuned). Car ads declare how much CO2/km they release, right? Anyone know their car engines? (I live in a city center and only drive on vacation.) Edit 2: This Al energy source is cool, but what everyone here really want is some hard data comparing it to a normal hybrid energy in costs, how easy it is to use and (maybe also) greenhouse effects. That the articles doesn't discuss that is probably a good answer.