Leaders from industry, Government and the media will be visiting the city tomorrow to deliver a message to businesses on the importance of the environment.

The event in Bradford will be hosted by Channel Four news presenter Jon Snow and feature keynote speeches from the chairman of the Environment Agency, Sir John Harman, and the BBC weathergirl Helen Young.

However the most hard-hitting message will be delivered by a group of children from a school in the district.

Youngsters from Saltaire Primary School have produced a video which will urge businesses to think about the impact they have on the environment.

The school became involved in the conference through their own eco-club which works to educate other pupils, parents and the community about the importance of looking after the environment. And tomorrow they will star in a video urging business leaders to follow their example.

Tomorrow's event, at the Cedar Court Hotel, has been organised by Business in the Community, which is a partnership of more than 750 companies.

The organisers were looking for a school to involve in the event and Saltaire Primary was recommended by the Bradford Community Environment Project (BCEP), which works closely with the school's eco-club.

The children have been interviewed on camera about how they work to improve the environment through the club's activities. Pupil Jack Bardsley-Ellis, 11, who appears on the film, said: "We were asked a lot of questions about how we think businesses can help the environment and what factories can do."

"Our eco-club is all about sustaining our environment. We learn about composting and recycling and reusing things. It has changed the way I think. We have just got a composting bin at home and that is because of the eco-club and I now recycle a lot more than I used to."

The school's involvement in tomorrow's conference has been welcomed by deputy head teacher Sally Stoker

She said: "The youngsters' breadth and depth of knowledge and awareness of environmental issues that impact on our lives is tremendous.

"Their concerns are real, which is why they are calling on businesses to act responsibly. Our school eco-club started last year and was the idea of Joshua Breeze, a pupil last year who is no longer at the school.

"We run it with the BCEP. It meets after school on Mondays for one hour with children working on recycling and composting our rubbish."

Although the eco-club only has 20 members, all children are urged to take part in its activities and it works closely with the pupil-run school council, which allows the children to make decisions on issues which matter to them.

Pam Lee, Business in the Community's regional director, said: "The aim of the conference is to share best practice and inspire businesses to act now to ensure sustainability of our economy into the future. The far-sighted vision of these schoolchildren compliments this theme and is to be applauded."

The school works in partnership with BCEP to raise awareness of the environment through projects such as producing its own compost - from items like fruit peel and tea bags - which is then used in the school garden.

And pupils have also worked with BCEP on an art workshop promoting wildlife. The school teamed up with children from Atlas Primary and Miriam Lord Primary to create their own pavement art.

The children produced chalk designs at Lister Park, in Manningham, last week on the theme of wildlife and gardens after touring the park for inspiration.

Mrs Stoker said: "The children are very knowledgeable about the environment. It is an issue which is very important to them and impacts on their lives."