We ask geologist and TV presenter, Iain Stewart about the history of climate change, how did we find out the Earth was warming, and what Margaret Thatcher has to do with it. His new series Earth: The Climate Wars began this week on BBC Two.
The government's former chief scientific advisor David King discusses food production in Africa and the world's continuing reliance on fossil fuels. It is ahead of his address to the British Association's annual meeting in Liverpool this week.
Plus a metamorphosis has been taking place at London's Natural History Museum. A giant 'cocoon' has been unveiled at The Darwin Centre. We sent producer Andy Duckworth out with some sandwiches, a backpack and a clipboard for his big day out. There is also an extended tour around the bizarre looking creation.
Also, why your partner may end up looking like your parents, crying babies, and greenhouses in the Sahara that can grow food. Of course, Cern gets a mention ahead of the big (bang) switch on this week.
Go ahead and tell us your thoughts about anything you've heard in the programme. You can do that on the science blog or you can join our facebook group and post a comment there.
Science correspondent Ian Sample and Nell Boase from the Guardian's arts blog join Alok and Iain in the studio.
And, for once, it's just good clean fun. That explicit box has not been checked.
