Werner is the Director of the Impact Economy Foundation. Moreover, Werner is a speaker on sustainability and host of BNR Koplopers. He is the chairman of the Jonge Klimaatbeweging (JKB), a national network of young people committed to a robust climate policy. JKB was the winner of the Trouw Duurzame 100 in 2020. Werner specialises in climate, generational justice, social innovation, and broad prosperity in 2100. Besides his work, Werner is a member of the Advisory Board of ASN Ban, TNO, Sichting OPEN, and VNCI.