On June 8th 2020 the Delta Plan ‘Wild Amsterdam’ was presented officially. In the role of research director at nextcity.nl Mathias was one of the initiators of this Plan together with Nature Optimist, Partizan Publik, De Groene Stad and Artis. He was one of the editor of the Plan and negotiated mutual targets with among others Bouwend Nederland. Watch the presentation of the new Green Vision for Amsterdam by Alderman Laurens Ivens and the introduction of ‘Wild Amsterdam’ by Thijs de Zeeuw en Joost Janmaat here.