《绿色转型：新兴市场建筑业的可持续发展》-英-148页_3mb

Summary of "Sustainable Construction in Emerging Markets" Report by IFC

1. Introduction

• Purpose: The report examines decarbonization pathways for the construction sector in emerging markets, addressing climate goals and economic growth challenges.
• Key Objectives: Analyzes current emissions, emerging technologies, financing mechanisms, and policy recommendations to achieve sustainable construction practices.

2. Current Emissions and Challenges

• Construction value chains account for approximately 40% of global CO₂ emissions, with emerging markets responsible for 70% (China contributing the largest share).
• Emissions are projected to increase by 13% by 2035 without intervention due to rapid urbanization and infrastructure demand.
• Market Failures: Limited green finance, high upfront costs for sustainable technologies, and fragmented regulatory frameworks hinder progress.
• Income Divide: High-income countries focus on carbon pricing, while emerging markets rely more on regulation and fiscal incentives.

3. Technological Solutions

• Available Technologies: Energy efficiency improvements, alternative fuels (e.g., biomass, waste), and electrification of buildings can reduce emissions moderately.
  • Example: District cooling systems can cut energy consumption by up to 40%.
• Emerging Technologies: Carbon capture, utilization, and storage (CCUS) and green hydrogen offer high abatement potential by 2035–2050 but remain economically unviable without support.
  • Cement and steel industries are prioritized for decarbonization due to their high emissions.

4. Financing Needs and Instruments

• Investment Requirement: $1.5 trillion needed by 2035 in emerging markets for green construction, with $1.3 trillion in China alone.
• Financial Tools:
  • Sustainability-Linked Debt: Aligns financing incentives with emission reduction targets.
  • Green Mortgages and REITs: Facilitate access to green financing for residential and commercial properties.
  • Blended Finance: Combines concessional and private funds to support high-risk projects in low-income economies.
• Current Flows: Emerging markets issued only 10% of global green debt finance in 2021, with a significant gap in private investment.

5. Policy Recommendations

• Regulatory Measures: Implement green building codes, energy efficiency standards, and regulations for materials like cement and steel.
• Carbon Pricing: Adopt carbon taxes or emissions trading systems to internalize costs, though emerging markets lag in implementation.
• Public Sector Role: Governments should lead by greening public procurement and providing fiscal support for decommissioning brown infrastructure.
• Development Institutions: IFC and MDBs can leverage concessional financing and technical assistance to mobilize private capital.

6. Conclusion and Ways Forward

• Integral Strategy: Decarbonization requires sequencing actions from readily available to emerging technologies, minimizing economic trade-offs.
• Urgency: Emerging markets must act now to align with global climate goals, leveraging international partnerships for funding and capacity building.
• Opportunities: Green construction presents a $1.5 trillion investment opportunity by 2035, with synergistic benefits for human welfare and economic resilience.