The Plenary of the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES), in decision IPBES-11/1, approved the undertaking of a second global assessment of biodiversity and ecosystem services. The overall objective of the second IPBES global assessment of biodiversity and ecosystem services (“the second global assessment”) is to assess relevant knowledge that has become available since the publication in 2019 of The Global Assessment Report on Biodiversity and Ecosystem Services and to assess progress towards achieving the goals of sustainability and living in harmony with nature. The Multidisciplinary Expert Panel invites qualified experts to apply, and Governments and relevant organizations to nominate experts to participate in the second global assessment.