Petra Hans is the senior advisor on sustainable food systems at the World Wide Fund for Nature (WWF) where she advises on sustainable food systems, using a holistic, systems-thinking approach. She focuses on biodiversity, ecosystem health, and human well-being. She is experienced in rights-based approaches to improve livelihoods and equity. She formerly led agricultural livelihoods strategy at the IKEA Foundation. At WWF, she works on food-feed competition, deforestation, and land use issues. She is a vocal advocate for nature-positive production, and agroecological practices, and she advocates plant-rich diets in environmental and public health strategies.