An Introduction to Climate Finance and Its Critical Intrinsic Link to Nature and Communities

Climate finance is central to addressing global climate change. It refers to financial resources directed toward reducing greenhouse gas emissions and strengthening climate resilience. Recognised by the United Nations as a strategic investment rather than charity, climate finance supports low carbon development, climate adaptation, and long term economic stability.

The Paris Agreement calls for financial flows to align with pathways that reduce emissions and enable climate resilient development. Yet global progress remains insufficient. Many governments are not on track to meet their commitments, increasing pressure on organisations and financial institutions to integrate climate responsibility into governance, ESG strategy, and risk management frameworks.

Without large scale climate finance, effective climate action will fall short.

The Role of Public vs Private Finance

Public and private finance both play indispensable roles in the climate transition, but they operate differently. Public finance is typically provided through governments, development finance institutions (DFIs), and state-owned entities, where private finance is not yet available or willing to take the risk.

• Public finance, provided by governments, development finance institutions, multilateral development banks, and state-owned entities, plays a catalytic role in the climate transition by stepping in where private finance is not yet available or willing to take risks. It funds essential public goods such as resilient infrastructure, flood defences, and energy grids, and helps de-risk emerging industries through concessional loans, guarantees, and blended finance. By directing capital toward high-risk or early-stage sectors — such as hydrogen, sustainable building materials, or electric mobility — public finance sends important market signals, supports innovation, and ensures that developing economies can pursue climate action without compromising urgent social and development needs.
• Private climate finance is equally essential, as it drives scale and efficiency once solutions are proven. It flows into renewable energy, electric vehicles, and energy-efficient infrastructure, mobilising the vast amounts of capital needed for systemic change. Institutional investors, commercial banks, and asset managers are increasingly aligning portfolios with climate goals by reallocating capital from fossil fuels to clean energy and by backing new technologies through venture capital and private equity. While public finance lays the groundwork and reduces barriers, private finance provides the scale and momentum, and together they form a complementary system essential for achieving a net-zero, climate-resilient economy.

Climate Finance, Nature, and Economic Stability

Climate finance is not only about emissions reduction. It is deeply connected to biodiversity, ecosystem services, and community resilience. According to the UNEP, the world is currently on a trajectory to exceed 3°C of warming by 2100 (UNEP Emissions Gap Report, 2023). If this path continues, the consequences will be devastating: global macroeconomic losses could reach 18% of GDP by 2050, escalating to 20% by 2100 (Swiss Re Institute, 2021).

This is therefore pushing nature to an unprecedented decline. Since 1970, there has been a 69% drop in global biodiversity, and one million species are at risk of extinction, as reported by the WWF (WWF, 2022). This is not just an ecosystem crisis; it is a profound economic threat. The World Economic Forum estimates that over $44 trillion, more than half of global GDP, is moderately or highly dependent on nature (The World Economic Forum, 2020). Current projections may underestimate the true scale of the impacts, often omitting critical risks such as:

• The economic costs of ecosystem collapse
• Social and geopolitical instability driven by climate-induced migration

Climate risk therefore intersects with economic risk, governance risk, and social stability. Financial systems that fail to account for environmental degradation underestimate long term exposure.

Investing in climate mitigation and adaptation today reduces systemic economic losses tomorrow. A pathway aligned with 1.5 degrees is significantly less costly than a business as usual trajectory.

Mitigation and Adaptation Efforts Working Hand in Hand to Build Resilience

Both public and private finance play essential roles in supporting mitigation and adaptation finance efforts to address climate change and build long-term resilience. Mitigation supports activities and policies aimed at reducing or avoiding greenhouse gas emissions. This includes funding renewable energy projects such as wind and solar power, deploying energy-efficient technologies, and building low-carbon transport systems.

Adaptation, on the other hand, enables societies and economies to adjust to the impacts of climate change, reducing vulnerability and enhancing resilience. Examples include providing climate-resilient seeds to farmers, constructing sea walls to protect coastal cities, and improving water supply systems.

Both adaptation and mitigation must go hand in hand, as a comprehensive climate strategy to address the root causes of climate change but to strengthen capacity of communities on inevitable impacts. Ensure both efforts financial efforts are intertwined into organisational strategy. This will ensure stakeholders aware of priority actions, and this alignment will demonstrate climate commitments, which will also lay the foundation for these priorities to be formally adopted into policies.