Data4CITIES initiative

Data-Based Solutions

Data4Cities is GCoM’s evidence-based foundational initiative to measure and manage cities and local governments’ climate ambition and progress. The smart use of data – big and small – will tell us how and why climate change is happening, inform local climate mitigation and adaptation strategies, and provide the evidence that governments, private sector partners, and citizens need to increase their support for local climate action.

Data4Cities lays the foundations for standardized data by streamlining – with consistency and transparency – how and what climate information from cities is collected, what data can be made available to support cities to act, alongside the mechanisms used to analyze this information.

Access to Data

GCoM cities, as part of their commitment, assess the current climate situation in their city by carrying out a greenhouse gas emissions inventory and a climate risk and vulnerability assessment [link to relevant resource] to provide insight into priority areas for climate action. Cities, however, have different levels of resources that can be directed towards monitoring their climate data. Data4Cities aims to strengthen all cities’ access to climate data, informing a city’s ability to understand their circumstances, areas for action, and impact over time.

Environmental insights Explorer

The Environmental Insights Explorer (EIE), launched by GCoM and Google, is designed to make Google’s significant data resources available to cities with the aim of accelerating measurement and planning stages for cities in favor of action. EIE can support cities in development of their emissions inventories by providing granular GHG emissions data estimates in four key areas: building emissions, transportation emissions, solar energy potential, and 20-year climate projections, as well as air quality, facilitating access to insights that can be used to act.

WRI Data Portal

The Data Portal for Cities, designed by GCoM and the World Resources Institute, helps cities unlock community-specific activity data and emission factors to develop greenhouse gas emissions inventories and fact-based climate action planning. The Data Portal for Cities helps communities by filling critical information gaps about their building, transportation, and waste sectors by providing previously unavailable data drawn from national and regional sources and making it freely available for city use.

GCoM has the unique ability to not only collect consistent and comparable data from cities worldwide but to collate, aggregate and help cities leverage the power of data to make their communities greener, more sustainable and climate-resilient.

Quality, Consistent and Transparent Data

With GCoM commitments supporting national governments to meet climate goals and build momentum for increased ambition quality, consistent, and transparent data is necessary to track cities’ contributions. Together with its partners, GCoM created the Common Reporting Framework – a harmonized reporting standard that allows signatory cities to quantify and compare their data with others. This globally consistent approach quantifies cities and local governments’ climate impact and – for the first time – does so in a way that is consistent with that of national governments. By uniting local voices and raising the bar on data transparency, Data4Cities helps promote the impact of city climate action, teach best practices, and improve technical and financial support for cities.

Data for Decision Making

Only with the right information can city leaders, policymakers, and investors make the best decisions to drive effective climate action. Data4Cities supports GCoM signatories to leverage this information by providing cities with access to high-quality data and tools, including to report their progress to demonstrate their achievements from commitment to implementation. Data4Cities is constantly innovating to leverage this vast data to allow cities and the partners who support them to learn from each other and gain new insights.

Aggregation Report

GCoM’s annual Impact (Aggregation) Report sheds light on the collective influence of its signatories at the frontlines of the fight against climate change, and calls for a significant boost in urban climate finance flows to realize the full potential of city climate action.

In 2022, the GCoM cities and local governments – like the rest of the world – have experienced multiple simultaneous crises relating to escalating inflation, unemployment, disruption to food and other resource supplies, the continuing impact of COVID—19 and more. This report particularly focuses on how the GCoM cities are responding to the interlinked crises of dramatic spikes in energy prices combined with ever more extreme weather events.

With climate mitigation targets that are projected to reduce global emissions by 4.1 GtCO2e in 2050, equivalent to 80 per cent of USA’s yearly GtCO2 emissions, GCoM cities are demonstrating that they are already taking action. Additionally this year, cities have reported hundreds of thousands of practical actions to improve energy efficiency, invest in renewable energy generation, address energy access, and adapt to the impacts of climate change.

Consult our resources

Page Navigation