Friday, 26th January 2024: Minister Eamonn Ryan today announced the launch of a year-long pilot project to measure and monitor greenhouse gas (GHG) emissions across Dublin City using a network of novel, low-cost, sensors distributed across the mobile phone mast infrastructure.

This innovative and exciting pilot project is one of several initiatives being developed by Terrain-AI, a large-scale research project focused on understanding emissions of greenhouse gases across terrestrial environments. Terrain-AI, led by Professors Tim McCarthy and Rowan Fealy of Maynooth University, is funded under the Strategic Partnership Programme by Science Foundation Ireland and Microsoft.

The pilot project ‘Urban Sense’ was developed in partnership with Dr Gerald Mills, University College Dublin, Edgeliot, an award winning DCU spinout which has developed a combination of low cost Climate Monitoring sensors and a real-time data capture and visualisation system, Cellnex, a leading operator of wireless telecommunications infrastructure, and Delmec, an engineering company that specialises in deploying equipment on cell towers. The project was funded by Microsoft Ireland.

As part of the pilot, 20 greenhouse gas sensors have been deployed across both residential and commercial areas in Dublin. The sensors, which measure greenhouse gases such as carbon dioxide and methane, as well as air quality parameters and weather variables, will provide a real-time visual pulse of the city, reflecting differences in land use, seasonal cycle in vegetation growth, weather events and even hourly patterns of traffic moving in and around the city streets.

Minister for Environment, Climate, Communications and Transport, Eamon Ryan, said:

It’s amazing to think that we can monitor greenhouse gas emissions in real time like this across Dublin City.  Local government has a vital role to play in helping us to meet Ireland’s national climate targets. Climate action works best when it works locally, improving our environment and improving people’s quality of life. This real-time visual pulse of the city will be key to assisting Dublin City Council in developing the policy actions that can help reduce emissions and make the city a better place to live, work or visit with cleaner air, safer transport and less congestion and noise.

The pilot project will support the EU Cities Mission, which has selected 112 leading European cities to become climate neutral by 2030. Both Dublin and Cork were selected out of more than 370 applicant cities across Europe to participate in the EU Cities Mission and have committed to implement cutting-edge and creative solutions across areas such as energy, transport, waste, infrastructure, and buildings to reduce their environmental footprints.

The pilot project will directly measure real-time data on CO2 and other gas concentrations across Dublin, using the low-cost sensors developed and built by Edgeliot.

The data collected will be used alongside Terrain-AI models to understand the temporal and spatial patterns of GHG emissions in relation to weather and human activities. The data will also help to identify emission hot-spots and guide policy actions to achieve emissions reductions. Critically and a unique aspect of the current pilot - the measurements obtained will provide a direct measure of how effective any implemented policy is – this has been a key challenge across urban areas internationally due to the lack of such measurement networks.

Urban Sense is directly aligned with Ireland’s Climate Action Plan, which aims to reduce GHG emissions by 51% of 2018 levels by 2030 and to be net zero by 2050. These commitments are enshrined in the 2021 Climate Action Plan and are based on the Paris Agreement.

The project partners expressed their enthusiasm and support for the pilot project.

Richard Shakespeare, Chief Executive, Dublin City Council, said: “We are excited to see the results of this innovative pilot project, which will provide us with valuable data and insights on our GHG emissions and has the potential to help us to achieve our ambitious climate goals. We are grateful to Terrain-AI, Edgeliot, Cellnex and Delmec for their collaboration and the funding from Microsoft. This project is an example of how Dublin can be leading the way in using technology and creativity to address the climate challenge and become a climate neutral city by 2030.”

Prof Rowan Fealy, Co-Principal Investigator of Terrain-AI at Maynooth University, said: “Terrain-AI is a multi-disciplinary research project that aims to provide a system-based understanding of the geography of GHG exchanges across Ireland’s diverse landscape, using innovative measurement and monitoring techniques and computational methodologies. We are delighted to work with our partners on this pilot project, which will provide us with a unique opportunity to test and validate our models and methods in an urban setting and potentially contribute to the EU Cities Mission. We hope that this project will serve as a model for other European cities to follow and to demonstrate the effectiveness of policy decisions on emissions.”

Prof Tim McCarthy, Co-Principal Investigator of Terrain-AI at Maynooth University, said: “This is a good example of Irish led research and innovation in action, focused on developing more sustainable worlds, involving a number of stakeholders including, Science Foundation Ireland, key Industry partner Microsoft together with Research Institutions, Central and Local Government as well as indigenous Irish Enterprise.”

Dr Gerald Mills, University College Dublin, said: “Globally, the majority of Carbon Dioxide, the principle greenhouse gas, is emitted by cities and these places are where efforts to manage anthropogenic climate change need to focus. Critically, we need independent observations of Carbon in the atmosphere over cities to identify emission sources and demonstrate the value of climate change policies. This unique network can provide real-time information that meets this need.”

Dr Gary McDarby, CEO of Edgeliot, said: "Edgeliot is an award winning DCU spinout that has developed low cost, scalable climate sensors together with a real-time data capture and visualisation system using a LoRa network and an Azure backend.  The sensors themselves, now deployed across Dublin, use a unique Edge Computing capture mechanism, allowing for very accurate real-time climate measurements  to be made locally. Wind measurement is also captured to help the modelling process of the dataset. We believe the data we acquire will play a key role in enabling data-driven and evidence -based climate action in supporting the EU Cities Mission and the Paris Agreement."

Paul Delaney, Country Manager of Cellnex Ireland, said: “Cellnex is a leading operator of wireless telecommunications infrastructure, with a portfolio of over 130,000 sites across 12 European countries. We are very happy to be part of this pilot project, which will leverage our extensive network of towers in Dublin to host the climate sensors and to provide the connectivity and power for the data transmission. We are always looking for ways to enhance our infrastructure and to support innovative projects that can benefit society and the environment. We are happy to collaborate with DCC, Terrain-AI, Edgeliot, Microsoft and Delmec on this project and to contribute to the EU Cities Mission and the climate action plan.”


Notes to Editors

Why urban areas are important and the benefits of the Urban Sense Project

Globally, urban areas account for less than 3% of the land area, yet they are estimated to be responsible for consuming 75% of global primary energy and consequently account for between 60-80% of global CO2 emissions. In Europe, more than 75% of the population live in cities which occupy about 4% of the total land area, many of which are exposed to the impacts of ongoing and future changes in the climate system. While many cities will need to adapt to these changes, cities globally also represent the single biggest opportunity to mitigate or reduce greenhouse gases, which impact the climate.

According to Ireland’s Environmental Protection Agency (EPA), the largest sources of emissions in Ireland come from agriculture (38.4%), transport (19.1%) and energy industries (16.6%). However, these greenhouse gas emissions are not uniform across the landscape; for example, although Dublin City occupies just 1.7% of the area of Ireland, it is estimated to contribute over 9.4% of the national emissions. In these complex urban landscapes, climate change policies must account for the concentration of human activities, including land use, energy consumption and transportation, where existing sectoral approaches may not deliver effective emissions reductions.

Urban Sense aims to address these challenges by providing a comprehensive, reliable and scalable solution for monitoring greenhouse gases and air quality across these complex urban environments. The pioneering project will increase our understanding of how urban activities and land management practices influence carbon emissions and air quality, and how these factors vary between locations and over time.

Urban sense will provide valuable insights for policy makers, urban planners, researchers and citizens on how to reduce greenhouse gas emissions and improve air quality for urban citizens. To achieve this, the project team will work with key stakeholders, including Dublin City Council, and other decision makers, to support the ambitions of Dublin in realising the objectives of the EU Cities Mission and serve as a model for other European cities to follow and to demonstrate the effectiveness of policy decisions on emissions.

About Terrain-AI

Terrain-AI is a Science Foundation Ireland funded Strategic Partnership Programme (SPP), co-funded by Microsoft, representing a collaboration between Maynooth University, Teagasc, Trinity College Dublin, University College Dublin, Dublin City University and the University of Limerick-


Edgeliot is an Irish based Startup that spunout of DCU in 2022. The company won the DCU Presidents award for Innovation in 2021 and it specialises in end to end Internet of Things (IoT) solutions that combine Edge Computing and AI. It has particular expertise in LoRa networks, embedded systems coding, algorithm design, data analytics and data visualisation. The company is based in Sandyford, Dublin.


Cellnex operates in 12 countries and is Europe’s leading operator of wireless telecommunications infrastructures, with a portfolio of 130,000 sites including forecast roll-outs up to 2030. Cellnex’s business is structured in four major areas: telecommunications infrastructure services; audiovisual broadcasting networks, mission and business critical networks and solutions for smart urban infrastructure and ser-vices management (Smart cities e the “Internet of Things” (IoT)).

Cellnex’s Irish business has a portfolio of more than 1,800 tower sites. Cellnex specialises in maximising the efficient use of tower infrastructure through hosting the equipment of multiple operators on its sites, thereby reducing costs for users and reducing the proliferation of unnecessary towers.