| Abstract Scope |
The automobile industry contributes significantly to global CO2 emissions with 24% originating from this sector. For a typical passenger car, 10% of CO2 emissions stem from production while 90% are from tailpipe emissions, totaling 30-35 T of CO2 over its lifecycle. Steel comprises 54% of automobile materials alongside Aluminum, Magnesium alloys, plastics and polymers. Current steel production methods rely on energy-intensive blast furnaces, emitting 1.94 T of CO2 per ton of Hot Metal. To align with Paris Agreement goals, steel industry emissions must decrease by over 50% by 2050. Our Sustainable Development Scenario proposes Advanced High Strength Steel for automobiles, reducing carbon footprint by lowering steel consumption and enhancing fuel economy. Replacement of conventional steel with AHSS could reduce weight by 19% in passenger vehicles, improving fuel economy by 6-8%. Similar benefits extend to commercial and heavy-duty vehicles with a 13% increase in freight efficiency for a 6% weight reduction. |