Videos

In the latest addition to our Cut Trident video wall, comedian and impressionist extraordinaire Alistair McGowan muses on alternative ways to spend the £97bn that the government is currently planning to blow on new nuclear weapons.

It's worth stopping to think about the true price of the salmon you eat. And there's quite a lot to think about.

Salmon is one of the biggest international seafood commodities, and in the UK it's easily one of the most consumed and most conspicuous species in our supermarkets and restaurants. But the vast majority of the salmon you'll find on shelves or plates these days has been farmed rather than fished. Partly that’s because there's hardly any wild Atlantic salmon left, but it's also because salmon's popularity has grown and it has gone from being a delicacy to become more of an everyday food in the past few decades.

With Copenhagen and Christmas taking up most of our attention in the undignified scrabble at the end of the year, a few things have fallen through the gaps so I've only just seen the email from Jörg Iversen about the video he produced with Roman Rütten. They're both design students at Buckinghamshire New University and made this impressive short as part of their coursework. There's even a behind the scenes film!

With all the headlines about what the world will be like if we don't get a grip on climate change - how hot it will be by 2050, how high the sea levels will rise, that sort of thing - there's always an element of uncertainty. The top line figures you see in the press are usually only one of a range of figures calculated by climate modelling, producing a range of potential outcomes based on possible changes to our behaviour and the environment.

What's often neglected is a risk assessment: comparing the probability of a particular outcome against the effect it will have. Our perception of risk is very skewed - we'll panic about things like swine flu (which the chances of us dying from a very low) but we'll quite happily drive around in cars where the probability of dying in a road accident are comparatively higher.