Marianne Kettunen is a principal policy analyst at the Institute for European Environmental Policy (IEEP), co-leading the institute's Global Challenges and Solutions work area. Ms Kettunen has over ten years of expertise in issues related to the EU and international biodiversity policy with special focus on assessing the socio-economic importance of biodiversity and ecosystem services and supporting the integration of these aspects into policies and decision-making processes. Ms Kettunen has a long track record in outreach, policy influence and capacity building on the value of nature, ecosystem services and green economy. She is a member of the IUCN WCPA working group on Natural Solutions and the lead editor and key author of a practical guidance book on the socio-economic value of protected areas published in 2013.