Below, we ask a few questions about the optimal number of people on Earth, and how that relates to income. The questions are about right and wrong. There are no correct or incorrect answers. We want to know your opinion. The survey should take 5 minutes or less.
The answers will inform research into the relationship between population size and long-term environmental problems such as climate change.
Any information you provide is confidential. No information that you disclose will lead to the identification of any individual in the reports on the survey, either by the researcher or by any other party.
Your participation is voluntary. You can choose not to participate in part or all of the survey. You can withdraw at any stage without being penalised or disadvantaged in any way.
By clicking "next", you certify that you understood the above and agree to take part in this research project of the Vrije Universiteit Amsterdam.