Resources & Data: Climate Solutions Gap
Curated datasets, reports, and tools for tracking the adaptation/mitigation funding gap and climate action progress. Every resource listed is a primary source — not a secondary interpretation — so you can verify the claims yourself.
Key Reports & Datasets
UN Environment Programme (UNEP)
- Adaptation Gap Report — Annual flagship report tracking the adaptation finance gap. The 2024 report confirms the $200–350B/year need vs. $20–30B delivered. This is the canonical source for adaptation finance data and includes country-level breakdowns.
- Emissions Gap Report — Tracks global emissions trends against the pathways needed to meet Paris Agreement targets. Updated annually with the latest emissions data.
- Climate Finance Tracker — Interactive tool for tracking climate finance flows by country, sector, and instrument. Essential for understanding where money actually goes vs. where pledges say it should.
IPCC (Intergovernmental Panel on Climate Change)
- AR6 Working Group II: Impacts, Adaptation and Vulnerability — 3,600+ pages of peer-reviewed analysis on climate impacts, adaptation needs, and vulnerability. The definitive scientific assessment of what adaptation is actually needed for and where it's failing.
- Special Report on 1.5°C — The analysis that established 1.5°C as the critical threshold and quantified the dramatically different impacts between 1.5°C and 2°C of warming.
World Bank & IMF
- Climate Finance Portal — Data on climate finance flows by country and sector. Includes the World Bank's own portfolio of climate investments.
- Climate Change and IMF — IMF analysis of climate risk from a financial stability perspective, including carbon pricing mechanisms and climate stress testing.
Climate Action Tracker (CAT)
- Global Climate Action Tracker — Independent scientific analysis that ranks countries by their climate target credibility and current policy trajectory. Updated regularly with the latest pledges and implementations.
International Energy Agency (IEA)
- World Energy Investment 2024 — Investment trends in clean energy vs. fossil fuels, with sector-level breakdowns and projections through 2030.
- Energy Access — Data on energy poverty, electrification rates, and the gap between current access and universal service.
- Global Hydrogen Review — Comprehensive analysis of hydrogen production costs, infrastructure, and deployment by region. The primary source for tracking green hydrogen cost trajectories.
Adaptation-Specific Resources
Adaptation Fund
- Official Website — The first multilateral fund directly managed by developing countries. Their project database shows real adaptation work on the ground.
- Project Database — Catalog of funded adaptation projects with cost data, beneficiary numbers, and reported outcomes.
UNDRR (United Nations Office for Disaster Risk Reduction)
- Global Assessment Report — The leading source on disaster risk trends, loss data, and the economic impact of climate-related disasters. Updated every four years with interim updates.
WMO (World Meteorological Organization)
- State of the Global Climate — Annual state of the climate report with comprehensive temperature, sea level, and extreme event data.
Tools for Tracking Progress
Climate Interactive — Interactive climate modeling tools including the C-ROADS simulator, which lets you test different climate policy scenarios and see emissions outcomes in real time.
UNFCCC Climate Action Portal — Real-time tracking of all national climate commitments (NDCs), loss and damage fund mechanisms, and global stocktake results.
Green Hydrogen Specific Data
IRENA's Green Hydrogen Cost Database — The most comprehensive public dataset on green hydrogen production costs by region, including electrolyzer costs, renewable electricity costs, and LCOH projections through 2030. Confirms the 2025 milestone of below $5/kg in the best-resource regions.
IEA Global Hydrogen Review 2025 — The latest comprehensive analysis of hydrogen production capacity, costs, infrastructure, and policy across 40+ countries. Confirms that cheap green hydrogen exists only in regions with both cheap renewables and electrolyzer manufacturing scale.
Battery Storage Data
IEA Energy Storage Report — Current and projected costs for lithium-ion, sodium-ion, and emerging storage technologies. CATL's 280 Ah LFP cells hitting ~160 Wh/kg mark a significant inflection point for grid-scale storage economics.