Up to 1,000 people turned up for the Portsmouth Climate Festival, which took place in the University of Portsmouth Students' Union on Saturday.

The festival boasted around 50 stalls from organisations such as Oxfam, Christian Aid and the Energy Savings Trust, which distributed free low-energy light bulbs to festival-goers.

Chris Kennett, one of the organisers of the event along with the Portsmouth Climate Action network, said they were delighted with the turnout.

He said: 'It was all about promoting different ways of living, different transport options, and becoming a climate champion – someone who doesn't just takes the message on board but goes on to practise it and spread the message in their school or workplace.

'There was a lot of interest in the converted cars, especially a Rolls Royce, and we think it's definitely something which is going to take off in the future.

'Biofuels are a really complicated issue, but my converted Volkswagen runs on recycled oil, like old chip shop grease.'