Getting Hotter

The big news in the UK this week is the EU referendum and by the time you hear this you will probably know the outcome. As I write this episode all I can say is that it is very finely balanced. The referendum has displaced most other news, some of which is arguably far more important. You'll remember that I have commented that each month this year has been the hottest month since records began. In fact there has been a sequence of 13 months, each one the hottest for the time of year since records began. This week I'm looking at what the scientists say is causing this, and what the consequences could be.