2024-01-19-麦肯锡-从绿色氨到低碳食品_8页_922kb

报告摘要

Summary of Green Ammonia Transition in Agriculture

Emissions Context: Agriculture contributes approximately 24% of global GHG emissions, equivalent to 1.5 times France's fossil fuel emissions, making decarbonization crucial.5
Decarbonization Lever: Switching from fossil-based (gray) ammonia to green ammonia for fertilizer production can reduce GHG emissions by about 5% in a typical European consumer basket. This is achieved through renewable energy-powered electrolysis and the Haber-Bosch process, with green ammonia being a direct replacement for gray ammonia.
Impact Scope: Green ammonia could decarbonize up to 3-8% of emissions for various food products, representing a substantial reduction. Key emissions reductions occur early in the value chain, primarily in fertilizer production, not affecting in-field emissions.
Key Benefits: This approach leverages existing technology for significant emission cuts with minimal changes to farming practices. It aligns with market trends, where sustainability demands and consumer willingness to pay can support financial viability through green premiums distributed across the value chain.
Challenges: Higher costs for green ammonia versus gray (e.g., €740/metric ton vs. €480/metric ton by 2030) require collaboration along the value chain— involving fertilizer producers, food companies, and policymakers—to absorb costs via incentives, subsidies, and new purchasing models. Implementation barriers include limited long-term financing and farmer incentives for decarbonization.
Opportunities: Growing support from government policies (e.g., EU Emissions Trading System and US Inflation Reduction Act) and market demand for sustainable products facilitate rapid adoption. Green ammonia could become economically attractive in regions like Europe and the US by 2030.
Call to Action: Transformative efforts across the agriculture value chain are needed to scale green ammonia production, driven by investment in renewable energy and stakeholder collaboration to achieve broader decarbonization goals.