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Tuesday, May 15, 2018

Treehugger Tuesday


With a push from Apple, a "revolutionary" process removes CO2 from aluminum smelting
Lloyd Alter
May 11, 2018

Even when made using hydro-electricity, aluminum production had a big carbon footprint.

Rio Tinto Alcan and Alcoa (with a big push from Apple) have just announced "a revolutionary process to make aluminum that produces oxygen and replaces all direct greenhouse gas emissions from the traditional aluminum smelting process."

Demand for aluminum is going up dramatically as more and more cars are made of it instead of heavier steel; there simply isn't enough recycled aluminum to go around. Making aluminum takes a huge amount of electricity (13,500 to 17,000 kWh per ton) which is why so much of it is made in Iceland and Canada, where there is a lot of water power. That's why the announcement was made in Canada. The move was announced by Canadian Prime Minister Justin Trudeau:

Read the entire article here.

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