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Beyond Energy: The Material Transition Needed
22 May
Summary
- Fossil fuels create more than just energy; they form modern materials.
- Chemicals, plastics, and construction rely heavily on fossil carbon.
- Sustainable carbon sources can replace fossil fuels in material production.
The global focus on net zero emissions has primarily centered on energy, overlooking a significant contribution of fossil fuels: their use as raw materials. A substantial portion of fossil fuel consumption is not burned but transformed into the physical components of modern life, including plastics, polymers, fertilisers, adhesives, solvents, and synthetic textiles. This 'second act' of fossil fuels results in carbon returning to the atmosphere when these materials degrade or are discarded, a factor largely absent from current net zero accounting.
The chemical industry, consuming significant oil and gas not for fuel but as feedstock, is central to this issue. Processes like Haber-Bosch for ammonia-based fertilisers and ethylene production for plastics highlight this reliance. Annually, around 400 million tonnes of plastic are produced, mostly from fossil feedstocks, with recycling rates critically low. The construction industry offers potential for carbon sequestration, as buildings can store carbon for decades. Innovations include using timber, biochar from agricultural waste, and captured carbon dioxide to create long-lasting building materials, shifting from a waste-based to a circular carbon model.
