Should Antarctica be off limits?
Antarctica is a 'natural reserve, devoted to peace and science' - that\u2019s according to an international treaty.
But with visitor numbers at a record high, how does tourism fit into that \u2013 and what kind of impact is it having on its fragile ecosystem? We discuss whether tourists \u2013 and even scientists \u2013 should be allowed to go at all.
Swimming in the Seine has been banned for more than a century because of pollution concerns. The main culprit? Human waste. We find out if it really will be safe in time.
And every summer we ready ourselves for 'flying ant day' \u2013 that one day where winged ants take to the skies across Britain. Or do they?
Presenter: Victoria Gill \nProducers: Sophie Ormiston, Ella Hubber and Gerry Holt \nEditor: Martin Smith \nProduction Co-ordinator: Jana Bennett-Holesworth