Get risk indices from GeoRasters object.
Value
List of risk indices. If the ri is global, the list will contain two elements,
one for each hemisphere. e.g. list(east = list(), west = list()). If the ri is not global,
the list will contain a single element, e.g. list().
Details
This function will unpack SpatRasters from GeoModel and thus is future::future() safe.