Héctor Tejero holds a Ph.D. in Biochemistry and Molecular Biology and is a climate activist. Member of Parliament for “Más Madrid” in the Madrid Assembly. Political coordinator of “Más País” in the Spanish Parliament. He published, with Emilio Santiago, «¿Qué hacer en caso de incendio? Manfiesto por el Green New Deal»“. Leads the negotiation with the Spanish Government to promote a pilot project to encourage a four-day or 32-hour working week.