Quote:
Originally Posted by oil pan 4
They generate the power for the carbon free process using an on site coal fired power plant. ...
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Yes, but althought Alcoa's breathless marketing claims shouldn't be accepted uncritically, so too the importance of the technological advance in itself shouldn't be casually dismissed because it does not answer all the problems at once. When Alcoa begins using their new process in Indiana, it seems they will reduce their overall carbon footprint--despite still having dirty power generation. When they get a cleaner power generation system, they will have still cleaner aluminum production. I guess we are stuck with limited steps.