Green economy market value breaks through $10 trillion: Milestones and challenges of global low-carbon transition

Introduction: When the Green Economy Goes Mainstream

In June 2026, a landmark signal sent shockwaves through the capital markets: the global green economy—companies deriving at least 20% of their revenue from environment-related businesses—surpassed $10 trillion in total market capitalization. If considered as an independent industry, it has already risen to third place worldwide, trailing only technology and healthcare. This figure not only reflects capital's bet on sustainable solutions but also reveals a structural shift in global development models.

However, market value is only the surface. Behind the numbers lie the accelerated depreciation of fossil fuel assets, the widening gap in climate adaptation investment, and the unequal challenges facing Global South countries in the transition. This article will analyze the deeper implications of this milestone from three dimensions: development economics, ESG investment, and global governance.

Stranded Assets and Capital Reallocation: Two Sides of the $10 Trillion Coin

The direct counterpart to the rising market cap of the green economy is the shrinking valuation of the fossil fuel industry. Reference reports indicate that fossil fuel assets face the risk of "depreciation to zero," while green companies have outperformed the broader market by about 12% over the past decade. This divergence is not a short-term phenomenon but the combined result of long-term policy drivers, technological iteration, and shifts in investor expectations.

From an ESG perspective, this trend validates the principle of "double materiality": climate change brings both physical risks (such as supply chain disruptions from extreme weather) and transition risks (financial losses from carbon-intensive assets). Institutional investors are systematically adjusting their portfolios. Data from institutions such as Morgan Stanley show that global ESG fund assets have exceeded $4 trillion, with clean energy, energy storage, and grid infrastructure becoming the main destinations for capital flows.

But what deserves more attention is the regional imbalance in capital allocation. The International Energy Agency (IEA) points out that global clean energy investment is expected to reach $2 trillion in 2025, but about 70% of it is concentrated in China, the United States, and the European Union. Clean energy investment in sub-Saharan Africa (excluding South Africa) accounts for less than 2% of the global total. This means that behind the $10 trillion green market cap lies a new development divide: developing countries lacking funds and technological capacity may be locked into fossil fuel dependence or unable to fully benefit from the growth dividends of the green economy.

Geopolitical Reshaping of the Energy Narrative: Lessons from the Iran War

A key clue in the reference reports is: "The Iran war changed the perception of energy markets, with oil and gas seen as vulnerable resources susceptible to trade chokepoints, while solar and wind power are gaining an advantage." This observation by former Secretary of State John Kerry reveals the interconnected logic of climate, security, and energy.2026年伊朗局势导致霍尔木兹海峡油轮通行受阻，国际油价一度回落至战前水平，但更深远的影响是：各国政府和企业开始重新评估能源供应的韧性。化石燃料依赖单一地理走廊的脆弱性，使得可再生能源的分布式特性成为战略优势。欧盟加速推进“能源安全+气候行动”双轨政策，将2030年可再生能源目标从45%上调至50%；日本则启动“亚洲能源转型合作伙伴计划”，为东南亚国家提供太阳能和风能融资。

这种地缘政治驱动型转型，对全球南方国家既是机遇也是压力。一方面，更高的可再生能源投资回报率可能吸引更多国际资本；另一方面，转型所需的矿产（锂、钴、稀土）开采可能引发新的资源冲突和环境破坏。刚果（金）的钴矿、智利的锂矿已出现此类矛盾。包容性绿色转型要求建立矿产供应链的透明度和劳工标准，这正是ESG治理的下一步核心。

极端气候与适应融资：必须填补的缺口

2026年夏季，欧洲遭遇创纪录热浪：法国多起溺水事件、西班牙全境高温预警、阿尔卑斯冰川加速消融。澳大利亚滑雪季面临最差开局，北极海洋热浪持续480天。这些事件不再是“未来的警告”，而是当下的成本。

然而，绿色经济的10万亿美元市值中，适应与韧性领域的占比不足15%。根据气候政策倡议组织（CPI）数据，2025年全球气候融资总额约1.3万亿美元，但适应融资仅占约10%，且大部分流向中等收入国家。最不发达国家和小岛屿国家在适应方面的资金缺口每年高达数千亿美元。

COP30（2025年）达成的协议包括“三倍适应融资”和“公正转型机制”，但落实进度缓慢。2026年11月即将在土耳其安塔利亚举行的COP31，将把适应资金承诺兑现作为核心议程之一。从发展研究角度看，绿色经济不能仅关注减缓（减排），必须将适应投资纳入市场估值逻辑。例如，具有气候韧性的基础设施、早期预警系统、气候智慧型农业等，应被视为“绿色经济”的组成部分，而非慈善项目。

全球治理：从数字到行动

参考报道还提及了2026年汉堡可持续发展大会、联合国高级别政治论坛（HLPF）以及AI for Good全球峰会。这些平台共同指向一个核心问题：如何将10万亿美元的市值转化为2030年可持续发展目标（SDGs）的实际进展？The theme of HLPF 2026 is "transformative, equitable, innovative, and coordinated actions." In terms of timeline, there are only four years left until 2030, but progress on most SDG targets is slow. Although the boom in the green economy contributes to SDG 7 (clean energy) and SDG 13 (climate action), its spillover effects on SDG 1 (poverty), SDG 2 (hunger), and SDG 10 (inequality) are limited. In fact, the costs of energy transition may be passed on to low-income groups through rising electricity prices, exacerbating energy poverty. Therefore, a just transition mechanism requires supporting social protection policies.

Notably, the AI for Good Summit explored the application of artificial intelligence in climate prediction, grid optimization, and disaster management. However, the digital divide remains severe: about 2.5 billion people globally still lack internet access, and the benefits of AI technology may further widen inequalities within and between countries. A referenced report warns: "Every form of artificial stupidity must be blocked and reversed," implying that technology governance needs to balance ethics and inclusivity.

Conclusion: A Green Future from a Long-term Perspective

10 trillion dollars is an encouraging figure, but it is more of a starting point. The growth logic of the green economy is based on the phase-out of fossil fuels, but how to ensure that the phase-out process is orderly, fair, and does not cause economic pain is a core challenge for policymakers.

From a global development perspective, the next decade will be a critical period for the green economy to move from a "capital story" to "universal value." This requires:

1. Integrate climate finance and sustainable development finance to avoid resource misallocation; 2. Establish an international cooperation framework to support clean energy infrastructure construction in the Global South; 3. Strengthen the global consistency of ESG standards to prevent "greenwashing" from eroding market trust; 4. Include adaptation investments in green economy statistics to reflect the true value of climate resilience.

As a quote from the reference says: "Those 10 trillion dollars in US stock market capitalization may have already brought slightly higher returns today, but the long-term returns are even greater—and that long term is actually not far off." As the 2030 clock ticks, the destination of this train should not be just capital growth, but the symbiotic prosperity of humanity and the planet.

--- *This article is based on public data and literature research and does not represent the position of any institution.*