Sebastian Diez is currently a Research Associate at Wolfson Atmospheric Chemistry Laboratories (Uni of York, UK). His scientific interests focus on tools to support air quality decision-making processes and environmental justice issues and questions, especially in the Global South. During his PhD training, he has developed experience in field measurements/campaigns, modelling, and more recently in low-cost sensors. After his doctoral studies, he has been involved with regional NGOs and local governments in LatAm working on climate change and air quality projects. He is currently part of the LAECESS (Latin America Early Career Earth System Scientist Network) steering committee and the editor at Nibö (a digital media whose objective is to socialize scientific knowledge in LatAm).