世界经济论坛-弥合差距_如何为净零转型提供资金（英）-2025.1_39页_3mb

报告摘要

Summary of "Bridging the Gap: How to Finance the Net-Zero Transition"

Core Content

This white paper explores the climate finance gap—the difference between the amount of capital needed to transition to a net-zero economy and the amount currently available. It highlights the scale of the challenge, the drivers of the gap, the differences between developed and developing countries, and the key sectors that require investment. The paper also discusses mechanisms for change, including strategic policy levers, market instruments, and hybrid mechanisms, and provides case studies from Europe and the US. Finally, it outlines principles for designing effective financial instruments to address the climate finance gap.

Main Points

1. The Climate Finance Gap in Numbers

Annual climate finance requirements are projected to rise to $9 trillion by 2030 and $10 trillion annually from 2031 to 2050.
In 2021/2022, only $1.26 trillion was invested globally.
Mitigation finance alone needs to exceed $8.4 trillion per year by 2030, but only $1.2 trillion was invested.
Adaptation finance reached $63 billion in 2021/2022, but the adaptation gap for developing countries is estimated to be $215–$387 billion annually.
Developing countries require $2.4 trillion annually by 2030, with $1 trillion needed from external sources.

2. Drivers of the Climate Finance Gap

Institutional capacity and technical expertise are lacking in some developing countries.
Public funding is insufficient, especially in middle- and low-income countries.
Private sector reluctance is driven by perceived risks, uncertainty in returns, and inadequate policy support.
High capital costs, political and regulatory uncertainty, and fragmented financial systems further hinder investment.
Lack of clarity in national plans and unstable regulatory frameworks make it difficult to attract international investment.
Data gaps, lack of carbon pricing, and macro-financial risks (e.g., debt sustainability, currency liquidity) are major barriers in least developed countries (LDCs).

3. Developed vs. Developing Countries

Developed countries received 44% of total tracked capital in 2021–22, while EMDEs (excluding China) received only 14%.
The 10 most vulnerable developing countries received just $23 billion in climate finance between 2000 and 2019, less than 2% of total capital outlay.
Developing countries need $3–4 trillion annually by 2030 for climate-related funding, with $2 trillion expected to come from domestic sources and $1–2 trillion from external financing.
Private capital is crucial but often deterred by high perceived risk and lack of clear policy frameworks.

4. Key Sectors for Climate Investment

Transport: Requires $2.5 trillion annually by 2030, rising to $3.2 trillion by 2050.
Energy: $1.74 trillion invested in clean energy in 2023, but $2.7 trillion is needed to meet Paris Agreement goals.
Buildings and infrastructure: Need $731 billion annually through to 2050.
Industry: Requires $320–540 billion annually by 2050.
Agriculture, forestry, and land use: Need $130 billion annually by 2050.

Mechanisms for Change

Strategic Policy Levers

Policy frameworks must be coherent, adaptable, and equitable.
They should reflect shades of progress, capturing both risks and opportunities in the transition from "brown" to "green".
Public policy is essential for aligning economic incentives with societal values.

Market Instruments

Market-based tools are needed to address negative externalities and eliminate market failure.
These include carbon pricing, emission trading schemes, and tax incentives.

Hybrid Mechanisms

Blended finance, guarantees, and risk insurance can help de-risk investments.
Development banks play a critical role in mobilizing private finance through technical and financial support.

Case Studies

European Green Deal

A comprehensive strategy to transition to a sustainable economy.
Emphasizes policy coherence and long-term planning.

EU Emissions Trading System (EU-ETS)

A market-based instrument to price carbon emissions and stimulate innovation.
Has been criticized for being too binary, rigid, and complex for practical application.

Carbon Border Adjustment Mechanism (CBAM)

Designed to address carbon leakage and promote fair trade.
Encourages carbon-intensive industries to reduce emissions by imposing tariffs on high-emission imports.

US Inflation Reduction Act (IRA)

A significant policy initiative that supports clean energy and green infrastructure.
Includes subsidies, tax credits, and investment incentives to drive private sector engagement.

Principles for Addressing the Climate Finance Gap

Leverage digital data to design innovative and effective financial instruments.
Ensure coherence, clarity, fairness, and appeal in policy design.
Promote international cooperation and knowledge sharing.
Tailor strategies to specific national needs and contexts.
Enhance institutional capacity in developing countries to design and implement bankable projects.
Support technology transfer and capacity-building initiatives to increase external investment.

Conclusion

The climate finance gap is a multifaceted challenge requiring both public and private sector engagement.
Private capital is essential, but de-risking mechanisms and clear regulatory environments are needed to mobilize it effectively.
Equity and fairness must be central to climate policy design.
Persistent experimentation and international cooperation are key to achieving a just and sustainable transition to net zero.