'I am environmental and climate change advisor specialized in international cooperation and I am also a farmer transitioning to agroecology. I am very happy to have found a space to discuss the role of population in global sustainability and wellbeing for all. Ever since I was little I was concerned about poverty and the impacts of humanity on nature. When I was studying in Toronto and later Berkeley, the concept of overpopulation became very controversial, even unspeakable. Yet it is hard to be concerned about the carrying capacity of the planet and not be aware that population has a role in it, as well as consumption, of course.'