Mitmachen Klimaratschlag Challenge OKNB PCS Public Climate School SoSe 22 Public Climate School WiSe 2021/22 Public Climate School SoSe 2021 Public Climate School WiSe 2020/21 Public Climate School WiSe 2019/20 Public Climate School SoSe 2020 Presse Presse 2021 Presse 2020 Presse 2019 EN Students For Future Erlangen