here, the women carry on the tradition of okinka pampa.r] >> we all work together, and we put a lot of effort into that. >> first, the men and women meet separately, then they meet with one another. once everything has been discussed, we queens have the last word. >> the island may no longer be home to a pure matriarchy, but it is definitely a contrast to the patriarchal power structures on the mainland. the archipelago it's part of was never fully colonized. that has allowed its democratic traditions to be largely preserved -- making orango a place of peace. >> around 57% of the global population already lives in urban areas, and counting. by 2050, cities could be home to as many as 5.2 billion people. the climate crisis is becoming an increasingly urgent issue for urban planners, with greener, nature-friendly housing developments now a priority. but these can be complex and costly to build. one option is to get the prospective residents themselves involved. >> sawdust fills the air at this building site around 30 kilometres from amsterda