10/07/2025
Nickel is needed to create all kinds of clean energy technology, from stainless steel alloys for wind turbines to the cathodes in the lithium-ion batteries that power electric vehicles. Driven in part by the clean energy transition, global demand for nickel is expected to double by 2040.
But nickel production has a massive carbon footprint, releasing up to 40 tons of CO2 for every ton of nickel refined. Without new, cleaner ways to meet this demand, we risk undermining the very goals we’re trying to achieve.
I’ve written before about potential solutions such as the “phytomining” project in Albania that grows and harvests nickel-accumulating flowers. But now, researchers at the Max Planck Institute for Sustainable Materials in Germany have discovered another new, low-carbon way to source this valuable metal, using hydrogen plasma—instead of coal-derived coke—to extract nickel from ore.
This new process reduces carbon pollution by 84 percent and uses 18 percent less energy. Even better, the leftover materials from the process can be repurposed to make bricks, reducing waste.
This method isn’t ready for full-scale industrial use yet, and scaling it up will bring its own challenges. But the fact that it can be done represents a huge step forward. “What we did here is to prove that the science works,” said one of the study’s authors, Ubaid Manzoor .
This breakthrough is a good reminder that climate solutions aren’t only about using less—they’re also about doing things differently. Thanks to science, new discoveries are being made all the time that can cut emissions, reduce energy use, turn industrial waste into building materials, and help us build a better world.