Schnitzer Steel Industries nonferrous metals.
Courtesy of Schnitzer Steel Industries

From screws to skyscrapers, steel shapes our world. But the industry is also responsible for 8% of global CO2 emissions. Scrap-metal recycler Schnitzer Steel Industries, which also makes finished products, is blazing a better path. In 2023, it was named the most sustainable company in the world by research firm Corporate Knights. “Was I surprised? No,” says CEO Tamara ­Lundgren. Schnitzer’s facilities are run by net-carbon-­free electricity, and it has reduced greenhouse-gas emissions by 24% since 2019. Last year it introduced net-zero-carbon GRN Steel products—carbon offsets and renewable-­energy credits address manufacturing emissions—­proving that sustainable steel can be feasible and profitable.

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