- 1970 born in Beverwijk, the Netherlands
- 1989 - 1995 Utrecht University, Master Environmental Science
- 1989 - 1995 Utrecht University, Master Chemistry
- 1990 - 1991 Leiden University, Public Administration Science
- 1995 - 1996 Copernicus Institute, Utrecht University
- 1996 - 2000 Bureau international cooperation, National Institute for Public Health and the Environment
- 2000 - now PBL Netherlands Environmental Assessment Agency
- 2007 PhD “Energy systems and climate policy - Long-term scenarios for an uncertain future”. https://dspace.library.uu.nl/bitstream/handle/1874/21449/index.htm;jsessionid=DF81C7BDA5518CF4743293D613553C08?sequence=15
- 2011 - now Professor Integrated Assessment of Global Environmental Change, Utrecht University
- 2015 - now Project leader IMAGE integrated assessment team PBL
- 2018 - now Member Royal Netherlands Academy of Arts and Sciences
- 2019 - 2022 Leading author IPCC 6th Assessment Group Working Group III Mitigation
- 2020 - 2023 Core writing team member IPCC Synthesis Report
- 2019 - 2023 Member Earth Commission, Future Earth
- 2022 - now Member EAT-Lancet Commission
- 2023 - now Member Earth Commission, Future Earth