A collection of curated readings and tools to support your city climate journey
OpenEarth and XBRL: How AI Is Shaping the Future of Sustainability Reporting
OpenEarth Foundation and XBRL International have teamed up to explore how artificial intelligence and open data standards can transform sustainability and financial reporting. By applying AI to XBRL-tagged data, the collaboration advances transparency, interoperability, and decision-making for frameworks like ESRS—turning complex disclosures into actionable climate insights.
Investing in the Resilient Energy Transition: Insights from the Leaders on Purpose CEO Summit at NYC Climate Week
During NYC Climate Week, OpenEarth Foundation’s Martin Wainstein joined global leaders at the Leaders on Purpose CEO Summit to discuss how data and innovation can power a resilient energy transition. The session highlighted CityCatalyst’s role in turning climate data into actionable insights, bridging local implementation with global accountability.
Impact, Multiplied: How Local Climate Leadership Sparks National Change
During NYC Climate Week, the Climate Mayors’ Impact, Multiplied campaign spotlighted how local climate action can spark national progress. From green housing to cooling streets, mayors are proving that city-led innovation scales fast, an idea CityCatalyst shares by empowering local leaders to turn data into action and amplify impact nationwide.
Building Influence Without Authority: A New Approach to Climate Leadership
During New York Climate Week 2025, leaders joined an interactive workshop on Building Influence Without Authority using the LEGO® Serious Play® method. The session showed how collaboration, empathy, and creativity can drive climate action when no single actor holds all the power. These lessons echo CityCatalyst’s mission: turning complex data into clarity so cities and consultants can move from information to action with greater influence.
From Risk to Resilience: Tackling Basement Flooding Through Equity and Reform
At Climate Week NYC 2025, CityCatalyst joined a panel on basement flooding, housing equity, and climate reform. Experts stressed how outdated policies leave vulnerable communities at risk and called for tenant protections, funding, and systemic change. The discussion showed why resilience must be equity-driven, and how cities worldwide can use tools like CityCatalyst to move from risk data to real solutions.
Community-Owned Climate Finance at Rio Climate Action Week
At Rio Climate Action Week, Open Earth Foundation presented the COUGAR initiative, a pioneering model for community-owned climate finance. By engaging local voices, creating inclusive funding portfolios, and aligning with community priorities, COUGAR ensures resilience and equity are at the core of climate action. With early successes in Porto Alegre, the project shows how finance can flow directly to those most affected, offering a scalable blueprint for cities worldwide.
Why Cities Should Measure Their Greenhouse Gas Emissions
Cities account for about 70% of global greenhouse gas emissions, making them critical players in climate action. Measuring these emissions enables targeted interventions, better policy decisions, and greater transparency. With frameworks like the GPC and platforms such as CityCatalyst, local governments can align with international targets, attract funding, and fast-track their journey toward a sustainable and resilient future.
CityCatalyst at London Climate Action Week 2025: Scaling Urban Climate Action Through Open Collaboration
London Climate Action Week (LCAW) is one of the world’s leading forums for climate leaders, innovators, and policymakers. In 2025, CityCatalyst participated in key sessions, including one led by Strategic Partnerships Lead Carole Viaene and attended by CEO Martin Wainstein. Our contributions highlighted the role of open data, AI-driven tools, and digital infrastructure in helping cities scale climate action, secure funding, and achieve measurable impact.
Why Climate Action Needs Better Data: Lessons from London Climate Week and What Cities Can Do Next
Insights from London Climate Action Week 2025 reveal how better climate data can help cities unlock investment, boost resilience, and scale solutions faster. By adopting standardized frameworks, integrating AI-powered analysis, and using platforms like CityCatalyst, municipalities can bridge the gap from planning to implementation—driving tangible results and accelerating their path to a low-carbon, climate-resilient future.
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