Eligibility criteria | Geographical—only evidence from OECD countries will be included (Fig. 3) Population—study addresses societal challenges* identified in the consultation process Intervention—study involves implementation of NBS action with a link to targeted societal challenges Study type—study measures the effect (empirical, lab-based) of NBS actions through comparator (temporal, spatial) Secondary case studies (reviews or with referenced link to other complimentary evidence) will be included but marked as separate evidence group. Model based study or case study with inference, such as theoretical/discussion/opinion articles, or anecdotal, will not be included Outcome—study assess effects of NBS action on HWB outcome—being only environmental/biophysical outcomes (no HWB element either measured (primary) or considered against other evidence (secondary)) |