The United Nations predicts that, by 2050, nearly 2 billion people will be added to the world’s population – and we will use 71% more resources per capita.
These statistics and the second International Day of Zero Waste, which took place recently, have highlighted the need for all of us to up our game when it comes to managing waste – we need to treat waste as a resource and embrace the principles of the circular economy, creating more durable products and reusing, recovering, and recycling as much as possible.
At Anglo American we understand the need to deliver the materials society needs while protecting our planet: Healthy Environment is one of the three pillars of our Sustainable Mining Plan. We believe in the need for a more circular economy and the principles of circularity to help drive value in our business.
We want to avoid the production of waste in the first place. But we recognise that many mined materials, previously considered to be waste, may have value, or potential value.
Among those materials is waste rock, generated from traditional mining techniques. It’s one of the biggest circular economy opportunities for the industry. It can be transformed into construction materials, agricultural uses, metal recovery or carbon sequestration.
Last year in Brazil, we completed a successful pilot using tailings waste to produce paving blocks. We donated 57,000 paving blocks to the municipality of Alvorada de Minas, in central Minas Gerais, to pave a stretch of road. By the end of the year, a total of 230,000 blocks had been donated to the municipality, and we expect to do the same for other areas in the state in the future.
We are also exploring the possibilities of using mineral waste in agriculture and rehabilitation activities, through the creation of topsoil and the recovery of nutrients beneficial for plants. This work includes the collaboration we started in 2023 with the University of São Paulo to explore the feasibility of producing topsoil from waste streams produced at Minas-Rio. We will continue this work in 2024, exploring upscaling options.
Our support of a number of R&D (research and development) programmes continues. They investigate whether or not our mineral wastes can be used as substrate for enhanced rock weathering to sequester atmospheric carbon over long periods of time.