Smoking and vaping controls, the remains of the largest sea reptile, volcanic ash and jet engines and food production 5 Live Science Podcast

Dr Chris Smith and the Naked Scientist team discover:
Why we need stricter smoking and vaping controls and will they work?
The remains of what’s believed to be the largest reptile to have roamed our Severn Seas.
A tribute to the BA pilot who saved his air passengers from a volcanic ash cloud – so why are volcanoes so disastrous for jet engines?
Finally, a look at how food production will cope with climate change in the future.