Rubén Serrano-Zulueta is a PhD student in Environmental Agrobiology. With a degree in Food Science and Technology, he aims for a global sustainable food system. There are many challenges to achieving so, starting from a fair allocation of environmental impacts like GHG or resource use. He studies the improvement of the attribution of environmental impacts of pastoralism by estimating natural impacts from wild herbivory in the absence of livestock activity. He also does social and anthropological research on grazing systems like Regenerative Rangeland Management or traditional pastoralism.