The world's cities are drowning in a $105 billion climate funding gap, and Africa is feeling the heat. This staggering figure, revealed in the 2025 Global Snapshot by CDP and the Global Covenant of Mayors for Climate & Energy (GCoM), highlights a growing chasm between urban ambition and financial reality. But here's where it gets even more alarming: this gap has widened by 22% since 2024, signaling that the cost of adapting to a changing climate is rapidly outpacing our ability to pay for it.
The report, unveiled at the COP30 Local Leaders Forum in Rio de Janeiro, paints a stark picture. Based on data from 507 cities across 62 countries, it reveals a troubling mismatch. While cities are planning ambitious climate resilience projects, the money to implement them simply isn't there. A companion report, Protected Places, further underscores this point, showing that a lack of financing is preventing many local climate plans from ever getting off the ground.
Take India, for example, where a mere 5% of planned climate actions are fully implemented, compared to 75% in Japan and a staggering 86% in China. The disparity is even more pronounced in Africa and Latin America, where only 31% and 23% of actions, respectively, are operational.
And this is the part most people miss: Africa, projected to house 60% of its population in urban areas by 2050, is on the frontlines of climate impact. From coastal flooding in Lagos and Dar es Salaam to heat stress in Nairobi and water scarcity in Windhoek, African cities are bearing the brunt of a crisis they did the least to create. Yet, they have the least access to the credit and capital markets needed to build resilience.
The report highlights a global shift towards urban innovation, with buildings and energy efficiency leading the charge in 2025, followed closely by green infrastructure and sustainable transport. Cities like Porto, electrifying its bus fleet, Freetown's ambitious tree-planting initiative, and Buenos Aires' community solar program demonstrate a growing municipal commitment to tackling climate risk at the local level.
However, funding shortfalls threaten to derail this momentum. A staggering 87% of projects disclosed this year still need financing, with nearly half entirely unfunded. The situation is even more dire in emerging markets, where 40% of climate projects are seeking full financing, compared to just 22% in developed economies.
Here's the controversial part: Investment remains heavily concentrated in wealthy regions, with the US and UK alone accounting for two-thirds of total disclosed financial needs. Meanwhile, developing countries, home to 40% of the projects, receive a mere fraction of available funds.
This disparity translates into stark differences in implementation. While Japan and China boast impressive execution rates, Africa lags behind with only 31% of planned actions realized. This gap underscores a persistent imbalance between the ambition of local governments and the fiscal autonomy needed to turn plans into reality.
One glimmer of hope lies in the rapid rise of nature-based urban solutions, which have quadrupled since 2020. These initiatives, ranging from tree restoration to urban cooling networks, offer cost-effective and dual-purpose benefits, providing both mitigation and adaptation solutions. For African cities, they represent a lifeline, leveraging natural systems instead of capital-intensive infrastructure.
But without sustained financing, this potential remains largely untapped. The $105 billion disclosed this year is just a drop in the ocean compared to the estimated $4.5 trillion cities need annually for mitigation and adaptation. Less than 10% of global climate finance currently reaches cities directly, leaving them reliant on national governments or multilateral institutions like the World Bank. This bottleneck stalls even the most well-designed projects.
CDP and GCoM are urging policymakers to overhaul the financial architecture supporting urban climate action. Their recommendations include integrating municipal priorities into Nationally Determined Contributions (NDCs), creating risk-sharing mechanisms to attract private capital, expanding initiatives like the Coalition for High Ambition Multilevel Partnerships (CHAMP), and standardizing disclosure frameworks to boost investor confidence.
As Katie Walsh, CDP’s Head of City Climate Finance, aptly puts it, “The financing tap for cities, especially in developing economies, must be fully opened to turn plans on paper into projects on the ground.”
For African cities, the report serves as both a warning and a call to action. Urban resilience is no longer a luxury; it's the bedrock of economic stability and public safety. Whether combating rising sea levels in Mombasa or extreme heat in Accra, financing climate adaptation is now inextricably linked to financing urban development.
As COP30 approaches, the message is clear: without systemic investment in city-level climate infrastructure, global climate goals will remain out of reach. And nowhere is this reality more urgent than in Africa's rapidly growing urban centers.
What do you think? Is the current financial system equipped to address the climate funding gap faced by cities, especially in Africa? Share your thoughts in the comments below.
