It is important to understand the similarities and differences between clean air, climate change and stratospheric ozone depletion, especially as we hear about them in the news, experience them in our own lives, and try to make sense of it all. Sometimes it can be overwhelming and confusing, but it doesn't have to be.
domingo, 12 de abril de 2009
Suscribirse a:
Enviar comentarios (Atom)
No hay comentarios:
Publicar un comentario