by a user group determine which scenario will be generated (for example, traditional
agribusiness scenario or environmentalist scenario). Each of the choices affects specific
model parameters. Model variables and/or parameters are also affected by user-determined
choices from other sub-models within GB-QUEST concerning future global development,
as well as the user group’s ‘worldview’ of how well people will adapt, how well
technology helps society, and how well natural systems cope with human activities. The
‘worldview’ choices represent scientific and behavioural uncertainty, which may
significantly influence how easily policies may accomplish intended outcomes.