Mining firms such as Alcoa and Rio Tinto are attempting to develop more environmentally friendly ways of producing aluminium as a result of pressure from suppliers , including Apple and Audi , as well as a desire to maintain demand for metals that generate most of their profit . Manufacturing aluminium , aluminium and steel accounts for a combined 30 % of direct industrial CO2 emissions . The joint Alcoa - aluminium Tinto Elysis project aims to create the first carbon - free aluminium smelters , while Sweden ’s Hybrit technology aims to replace coaking coal with hydrogen during steel manufacture .
Mining firms such as Alcoa and Rio Tinto are attempting to find more environmentally friendly ways of producing metal as a result of pressure from customers, including Apple and Audi, as well as a desire to maintain demand for materials that generate most of their profit. Manufacturing aluminium, iron and steel accounts for a combined 30% of direct industrial CO2 emissions. The joint Alcoa-Rio Tinto Elysis project aims to create the first carbon-free aluminium smelters, while Sweden’s Hybrit technology hopes to replace coaking coal with hydrogen during steel manufacture.