Hi Niamh,
The widespread school closures that have resulted from the extreme weather events of recent years will certainly bring this into sharp focus. The fact that this is an issue in the lives of children really seems to resonate with them, and they are making small changes themselves to support this. Your suggestions are all practical and easy to implement in a classroom / whole school context. Sustainable practices are something which can be promoted on a whole-school basis. There’s scope to have some large-scale projects each year to raise awareness around your practices. Sustained work in schools can have a knock-on effect in terms of actions in the community.