
Marcia leads the 1.5°C Overshoot Hub at Climate Analytics, which brings together the organisation’s work on what it means when warming temporarily exceeds 1.5°C. The Hub connects our science and policy analysis into one consistent picture of overshoot: how high warming peaks, when net zero is reached, and how quickly temperatures need to return below 1.5°C. Her focus is on making this science clear and usable for governments and institutions, with a simple message: overshoot increases countries’ obligation to act now, and the next decade will set the course for the rest of the century.
Marcia returns to Climate Analytics after eight and a half years at the OECD, where she was a Senior Policy Analyst. She started with the Climate Change Expert Group (CCXG) and went on to work on loss and damage, climate tipping points and mitigation policy. Before joining the OECD, she was Head of Climate Policy at Climate Analytics, where she led the flagship Climate Action Tracker among other projects.
Marcia holds a PhD in Environmental Sciences from the University of Potsdam and an MSc in Ecology from Pierre and Marie Curie University. She has more than 15 years of experience at the interface of climate science and policy, and works in Portuguese, English, French and Spanish. Marcia is based in Paris.