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Last Updated: 29 July 2022

Clean-energy technologies like wind, solar and hydro will power a carbon-neutral future. And to build them, we’re going to need critical minerals and metals. A lot of them.

We know demand for these materials can’t come at the expense of people and the environment – we need to leave the lightest footprint we can. And although new technologies have improved our processes over time, our industry still uses a lot of energy and can produce hazardous waste.

But what if some of the oldest and tiniest living organisms on Earth could offer solutions to these big challenges?

Sometimes called the ‘’, microbes maintain the health of all life – plants, animals and humans. They break down organic matter, capture carbon dioxide in waste, and create the nutrients that entire ecosystems need to grow. If we can learn more about these microscopic creatures, their individual traits, and how they work with each other, we may be able to combine their strengths to help us mine more sustainably.

“I like to say that there is always a microbe out there somewhere that can solve any issue you have – the problem is finding the right ones when you need them! This is where M-MAP will be a game-changer, giving us and our partners a unique breadth and depth of data related to microbes that are already doing amazing things at our mine sites. With this data we can identify the right microbe for a solution, isolate where it is at our sites and understand which pathways the microbe or microbial community is using to deliver the functionality we need.”

– Nick Gurieff, Principal Adviser for Closure Research and Development, Rio Tinto

That’s where the project comes in.

Launched in February 2022, M-MAP is a partnership between government, a leading Canadian research university, not-for-profit research partners, and global mining, bioinformatics and synthetic biology companies. The project is developing the world’s largest database of mine site microbial data that will be used to identify microbes that could help us mine more sustainably in some incredible ways.

We already know, for example, that microbes exist that can – which is sometimes found in mining waste – so that the metal itself can be removed from the environment and recycled safely. But it's possible we could also find a combination of microbes that would speed up reforestation after a mine closes. Or that could treat contaminated water to be drinkable again, without needing to use any chemicals. Or that could protect natural environments from becoming polluted in the first place.