We need to cover our overheads, otherwise, we cannot help anyone. Our view is that environmental catastrophe is a real existential threat to all inhabitants of this planet, overriding all other worthy causes. At our discretion, we may choose to offer free or low-cost surveys to charities and community organisations, but in these early days of our organisation, our efforts will go into supporting environmental groups for free. We believe that in order to save the planet we all need to make very difficult trade-offs. We believe that Polis is the perfect tool for navigating such challenging, divisive conversations in a civil and anonymous way. Although we do not ask for payment for our work, we ask that environmental groups recommend us to other environmental groups; that they provide a link to our site from their website; and that they mention us in any media coverage.