we're still pioneering, and there are many, many islands, many projects all over the world, to find out how we can make the corals more resilient. the biggest challenge will be to get the people to realise that something big needs to be done. we have to work together. governments, scientists, and all this together, could be the perfect solution. so far, i've been looking at why corals are vital to these islands, and i've been looking at some truly i'm continuing myjourney through the maldives, and i'm leaving the idyllic islands behind to travel to the capital, mali. this is a city of 250,000 people crammed into a space more densely populated than manhattan. and it's completely hectic. it's so packed, it's hard to get a sense of how developed it is until you get