Mar Garcia was born in Sabadell, Barcelona. She holds a degree in Political Science and Master on Public Management. Mar joined ICV, Catalonian Greens in 2003. Since then she has been part of the Party International Secretariat. Mar worked in the City Council of Barcelona for 12 years, as the responsible of the Environmental International Relations of the city of Barcelona first, and as the Head of Cabinet of the Deputy Mayor for Environment of the city afterwards. Mar has been elected as EGP Committee member in 2012 and as EGP Secretary General since 2014.