One4Leather writes on LinkedIn that if the automotive industry stopped using leather altogether, 35 million hides would go to landfill, meaning over 644 million kg CO2e would be emitted annually. That’s the same as driving an average car 6.4 billion km or driving Route 66 over 1.6 million times. If the automotive industry just increased the use of leather by just 10%, it would save 3.5 million hides from landfill and save over 64 million kg of CO₂e.