War on water

Firstly, we head down to the South of France, to the Camargue to be exact, where the marshes and beaches around the town of Saintes Maries de la Mer are already under threat from rising sea levels. In fact, scientists say that by 2030 the sea will have risen by up to 23cm, and the marshlands could have disappeared entirely by 2100. The government here has the means of paying for solutions, but are they always good for the environment they claim to protect?

Meanwhile developing countries are often faced with the same problems, but governments don't always have the same resources to deal with the costly challenge of rising sea levels. We head to Ivory Coast where much of the western shoreline is being nibbled away at by the sea. The village of Grand Lahou is one of the worst hit areas, and people have simply no choice but to move further inland.

And finally, we'll see how rising sea levels can lead to a new way of life: if you're living with the threat of flooding, why not live on top of the water instead? We take a look at the countries building futuristic floating houses and even floating islands.