From Apple:

Aluminum is a key material in many of Apple’s most popular products, and for more than 130 years, it’s been produced the same way. But that’s about to change.

Aluminum giants Alcoa Corporation and Rio Tinto Aluminum today announced a joint venture to commercialize patented technology that eliminates direct greenhouse gas emissions from the traditional smelting process, a key step in aluminum production. This is a revolutionary advancement in the manufacturing of one of the world’s most widely used metals.

As part of Apple’s commitment to reducing the environmental impact of its products through innovation, the company helped accelerate the development of this technology. And Apple has partnered with both aluminum companies, and the Governments of Canada and Quebec, to collectively invest a combined $144 million to future research and development.

Read more: Apple Newsroom