"Clare McCusker, headteacher, said: "Our children live the message of reduce, reuse and recycle in their daily routines and at the centre of their learning is a caring attitude not only to one another but also the environment."
http://edinburghnews.scotsman.com/news/Nurserys-green-achievements-flagged-up.6400200.jp
I've worked with several nursery schools/classes that didn't have pedal-less 'training bikes'.
Teachers/parents are usually very impressed with how quickly kids learn to use them and the balance and learning benefits that result too.