How often do people visit the world’s protected areas (PAs)? Despite PAs covering one-eighth of the land and being a major focus of nature-based recreation and tourism, we don’t know. To address this, we compiled a globally-representative database of visits to PAs and built region-specific models predicting visit rates from PA size, local population size, remoteness, natural attractiveness, and national income.

Tropical bottom trawling is among the most destructive fishing
practices, catching large quantities of bycatch, which are usually
discarded. We used questionnaire surveys of trawl fishers to look at
changes in catches over the last 30 years (1978

The recreational use of marine protected areas (MPAs) is a potential source of funding for MPAs in developing countries, for instance given the willingness of international divers to pay considerably higher diving fees than they currently pay.