Students at Maple Primary School in St Albans celebrate Clean Air Day and reap the rewards with fewer cars outside school.
The students have designed their own anti-idling posters. The posters have been made into banners which was been funded by the PTA second hand book.
Here are some more of the designs on show outside the school on Clean Air Day.
A group of Year 5 children did a survey of how everyone was travelling to school on Clean Air Day, and were handing out Modeshift stickers to all those who travelled sustainably.
Well done to all involved at the school for working so hard on this campaign, keep up the brilliant work!