To mark Earth Day, thousands of children climb the 'Dune de Pilat' in the South West of France, Europe's largest dune but one which is fragile. This edition also looks at the issue of climate refugees.
There is plenty more fish in the sea the old saying goes, but there are in fact less and less of them, with some species facing extinction. This week 'Environment' looks at the fate of the bluefin tuna and the problems in Lake Victoria.
Sustainable development is all about using eco-friendly products. In Paris, the Packdesign Gallery sells numerous fashion accessories such as handbags that have been transformed into high fashion from old everyday packaging.