 …the two perspectives—insurance and options—are inherently interlinked; however, they depend on different types of uncertainty (supply vs. demand), which makes the differentiation sensible. The view of biodiversity as carrier of option value stems from the recognition that a biodiverse ecosystem, which contains many different species and genomes, can best accommodate unanticipated future desires (preferences). As in the case of insurance value, this can be coupled with considerations of intergenerational equity. In fact, in the case of option value, this notion is arguably more central: high levels of biodiversity now mean many different options for our descendants.