Pupils from across the city have been learning more about ways to tackle climate change during a conference at the University of Bath.

Some 180 pupils from 14 schools have been taking part in a series of events to highlight the problems of global warming and the latest innovations to combat it.

The Year 9 and 10 children created a graffiti floor full of pledges about how they would take positive action.

They also heard talks from representatives of organisations including Wessex Water, Send a Cow, Comic Relief and WaterAid.

Kingswood School pupil Matt Jeffery, 14, said: "We've learnt how we can make a change to climate change, which is really important as we only have one world."

The pupils made team presentations about their 2020 Vision, which was how they thought the world would respond to climate change. The two-day event was organised by Resource Futures, a local environmental consultancy, together with staff and students from Ralph Allen, St Gregory's and Oldfield schools and the outreach team at the university.

Education manager for Resource Futures, Jane Talbot, said: "The conference was an opportunity for young people to come together to talk about the crucial issues of climate change, to find out how it affects people across the world, and share and develop ideas on what they can do about it. At the end of the two days they are ready to take back ideas for positive action to their home, school and community."

Meanwhile, three sixth-formers from King Edward's School were victorious in Birmingham University's Particle Physics Competition.

Alice Udale-Smith, Alan Bowman and Malcolm Corbin created a four-minute video explaining the subject of neutrinos – particles that travel close to the speed of light. To see the winning video, go to http://www.hep.ph. bham.ac.uk/ VideoAnimationCompetition/Welcome.html.

Meanwhile, Year 9 pupils from St Mark's School visited the university in an event run by Aimhigher, a national initiative to encourage them to go on to higher education.

The visit started with team-building exercises before a tour of the campus, games, question- and-answer sessions and a fun liquid nitrogen demonstration by physics lecturer Peter Ford.