Natur og Ungdom (NU) which translates Nature and Youth, also known in English as Young Friends of the Earth Norway is a Norwegian youth environment protecting organisation. It is the only environmentalistyouth organisation in Norway. 7000 members in 80 local groups work on environmental issues all throughout the country. Officially NU is the youth branch of the Norwegian Society for the Conservation of Nature. The organisation is led by Silje Lundberg.