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We could need 6 times more of the minerals used for renewables and batteries. How can we avoid a huge increase in mining impacts?

  • Written by Rusty Langdon, Senior Research Consultant, Institute for Sustainable Futures, University of Technology Sydney

We are seeing the biggest changes in our energy and transport systems since industrialisation. By 2026, global renewable energy generation is expected to match[1] total fossil fuel and nuclear output. Building the wind and solar farms, batteries and electricity networks we need to run our system on renewables will use a huge array of mined minerals, known as “transition minerals”.

The numbers are staggering. The International Energy Agency estimates[2] a sixfold increase in demand for these minerals by 2040 to meet climate targets of well below 2℃ of warming. We could need 21.5 million tonnes for electric vehicles and battery storage alone.

Transitional minerals include metals such as lithium, cobalt, copper, graphite, magnesium and nickel. They also include rare earths like neodymium, praseodymium, dysprosium and terbium.

Currently, mining provides almost our entire supply. The scale of demand for these minerals could result in almost 400 new mines[3] by 2035.

To put this in perspective, Australia has around 350 operating mines[4]. More than 50%[5] of the world’s lithium and much of its copper, cobalt, nickel and rare earths come from our mines.

Australia is hosting the World Mining Congress[6] this week. A key issue for the industry is how we can ensure the minerals needed for the energy transition are sourced responsibly.

Read more: More clean energy means more mines – we shouldn't sacrifice communities in the name of climate action[7]

How can we manage demand?

We can design energy and transport systems to minimise mineral demand. Strategies include:

  • reducing our dependence on cars and using smaller vehicles
  • improving energy efficiency
  • moving to a circular economy that makes reuse and recycling a priority.

All these changes can reduce the need for new mines.

Recycling, for example, could reduce demand for mined materials. For lithium-ion batteries for electric vehicles, estimated reductions[8] are 25% for lithium, 35% for cobalt and nickel, and 55% for copper by 2040.

This recycled content will mainly come from waste batteries. However, large volumes of lithium-ion batteries won’t start reaching the end of their lives for at least a decade. Recycling will only have a significant impact from 2035[9].

Read more: Batteries are the environmental Achilles heel of electric vehicles – unless we repair, reuse and recycle them[10]

Mining is unavoidable, so we must limit its impacts

If we are destined to continue mining for the minerals needed for the energy transition, how can this be done responsibly? And what exactly do we mean by responsible sourcing?

Responsible sourcing minimises the environmental, social and governance impacts and risks of mining. Key concerns include the use of child labour and forced labour, damage to the environment, impacts on Indigenous rights and cultural heritage, and corruption.

In 2011, the Australian government released guidance on sustainable mining[11]. Historical and recent harmful impacts highlight the need for a fresh look at mining practices. In 2020, for example, Rio Tinto destroyed[12] a 46,000-year-old Aboriginal heritage site in Juukan Gorge.

First Nations people worldwide are calling for free, prior and informed consent when mining and renewable energy developments are proposed for their land. This approach recognises the right to be consulted early in the process, informed of the impacts, and supported to take part in negotiation and making agreements. Most importantly, it includes the right to say no.

In many parts of Australia, Indigenous communities have been locked out of economic opportunities[13], despite mining generating enormous wealth on their Country.

Rock shelters in walls of gorge in arid outback country
The destruction of the Juukan Gorge heritage site by Rio Tinto showed Australian miners have much work to do to ensure responsible sourcing of minerals. PKKP and PKKP Aboriginal Corporation/AAP

Read more: 54% of projects extracting clean energy minerals overlap with Indigenous lands, research reveals[14]

What does responsible sourcing involve?

How do we do things more responsibly? We need to ensure activities comply with a range of sustainability criteria. An agreed standard will mean we have information that enables us to compare the good and bad apples.

The problem is there isn’t a common approach to measuring, managing and reporting environmental, social and governance performance. Our recent research[15] analysed the plethora of voluntary standards and certifications available to battery materials producers. No common global or Australian standard has been adopted.

Smaller mining companies also struggle with the administrative complexities of sustainability reporting and management criteria. An agreed common language for reporting and management is needed. Only then can traceability solutions, such as the Global Battery Alliance’s blockchain-enabled “battery passport[16]”, produce trustworthy and comparable results.

Read more: Australia has rich deposits of critical minerals for green technology. But we are not making the most of them ... yet[17]

Let’s set the bar high

Our research[18] identified the Initiative for Responsible Mining Assurance (IRMA) as one of the more rigorous standards. Its credibility is built on how it is governed. This involves six stakeholder groups: mining companies, purchasers, NGOs, affected communities, labour organisations and the finance sector.

There are still questions to be answered. How do practices in Australia measure up to the standard? And how can regulatory reform help to steer mining operations in the right direction?

A focus on environmental, social and governance practices in the Australian Critical Minerals Strategy[19], released last week, is a welcome first step.

Issues that must be front and centre include:

  • mining impacts on water supply
  • free, prior and informed consent from First Nations communities
  • integrated planning for climate change impacts such as extreme weather that may affect management of mine tailings
  • biodiversity protection
  • mine closure planning that integrates progressive rehabilitation of ecosystems
  • circular business practices to make the most of what we have.

Read more: Tapping mineral wealth in mining waste could offset damage from new green economy mines[20]

As a leading mining nation, Australia is in a position to leverage its historical environmental leadership, show renewed responsibility and integrity, and lead by example. We can then help leave the planet in a shape that future generations will be proud to inherit.

References

  1. ^ expected to match (www.iea.org)
  2. ^ estimates (www.iea.org)
  3. ^ 400 new mines (source.benchmarkminerals.com)
  4. ^ 350 operating mines (www.ga.gov.au)
  5. ^ More than 50% (www.minister.industry.gov.au)
  6. ^ World Mining Congress (wmc2023.org)
  7. ^ More clean energy means more mines – we shouldn't sacrifice communities in the name of climate action (theconversation.com)
  8. ^ estimated reductions (earthworks.org)
  9. ^ significant impact from 2035 (www-sciencedirect-com.ezproxy.lib.uts.edu.au)
  10. ^ Batteries are the environmental Achilles heel of electric vehicles – unless we repair, reuse and recycle them (theconversation.com)
  11. ^ guidance on sustainable mining (www.industry.gov.au)
  12. ^ destroyed (www.theguardian.com)
  13. ^ locked out of economic opportunities (theconversation.com)
  14. ^ 54% of projects extracting clean energy minerals overlap with Indigenous lands, research reveals (theconversation.com)
  15. ^ recent research (fbicrc.com.au)
  16. ^ battery passport (www.globalbattery.org)
  17. ^ Australia has rich deposits of critical minerals for green technology. But we are not making the most of them ... yet (theconversation.com)
  18. ^ Our research (fbicrc.com.au)
  19. ^ Australian Critical Minerals Strategy (www.industry.gov.au)
  20. ^ Tapping mineral wealth in mining waste could offset damage from new green economy mines (theconversation.com)

Read more https://theconversation.com/we-could-need-6-times-more-of-the-minerals-used-for-renewables-and-batteries-how-can-we-avoid-a-huge-increase-in-mining-impacts-206864

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