the forces of nature. it's been here for about two years. it's 20 metres long, it's about four metres wide and about 1.5 metres above the sea bed. another half—metre and it should pop up above the surface and hopefully just keep growing. each time we go, we try different materials, different construction techniques. the reason for that is because we want to try to make it as scalable as possible. because this is a global problem, it's not only focused on the maldives. so if you really want to have a solution, you need to make it fast, scalable, cheap. and if it works, this sort of deliverable, sustainable solution could be used not only to save the maldives, but many other island nations or coastlines that are also suffering the effects of climate change. fixing it won't be easy. we need to try out new ideas and work together. small is beautiful, and that's how you scale it up. -