An open-source tool to assess the carbon footprint of research
Authors: Mariette Jérôme , Blanchard Odile , Berné Olivier , Aumont Olivier , Carrey Julian , Ligozat Anne Laure , Lellouch Emmanuel , Roche Philippe-e , Guennebaud Gäel , Thanwerdas Joel , Bardou Philippe , Salin Gérald , Maigne Elise , Servan Sophie , Ben-Ari Tamara 
Published: January 2021

The scrutiny over the carbon footprint of academics has increased rapidly in the last few years. This has resulted in a series of publications providing various estimates of the carbon footprint of one or several research activities, principally at the scale of a university or a research center or, more recently, a field of research. The variety of tools or methodologies - on which these estimates rely - unfortunately prevents from any direct comparison because of the sensitivity of carbon footprint assessments to variations in the scope and to key parameters such as emission factors. In an effort to enabling a robust comparison of research carbon footprints across institutions, contexts or disciplines, we present an open-source web application,GES 1point5designed to estimate the carbon footprint of a department, research lab or team in any country of the world with a transparent and common methodology. The current version ofGES 1point5, open-source and freely available, takes into account the most common and often predominant emission sources in research labs: buildings, digital devices, commuting, and professional travel.GES 1point5is developed by an interdisciplinary team of scientists from several public research institutions in France as part of the Labos 1point5 project.GES 1point5is therefore presently tailored for the French context but can be adjusted to any national contexts by adjusting the values of emission factors. The versatility and usability of the software have been empirically validated by its adoption by several hundred research labs in France over the last 18 months. In addition to enabling the estimation and monitoring of greenhouse gas (GHG) emissions at the scale of a research lab,GES 1point5is designed to aggregate the data entered by the labs and the corresponding GHG emissions estimates into a comprehensive database.GES 1point5can therefore allow to (i) identify robust determinants of the carbon footprint of research activities across a network of research labs (ii) estimate the carbon footprint of research at the national scale. A preliminary analysis of the carbon footprint of more than one hundred laboratories is presented to illustrate the potential of the approach. While assessments of carbon footprints are often externalized onto extension services and proprietary softwares,GES 1point5is designed as a hands-on, pedagogic and transparent tool for research labs to monitor and reduce their own carbon footprint. This internalization has strong positive co-benefits for academics in terms of awareness and empowerment. We further expect that international dissemination ofGES 1point5will contribute to establishing a global understanding of the drivers of the research carbon footprint worldwide and an identification of the levers to decrease it.

Availability and implementation

GES 1point5is available online athttp://labos1point5.org/ges-1point5and its source code can be downloaded from the GitLab platform athttps://framagit.org/labos1point5/l1p5-vuejs.