Topic
Animation
1
Atmosphärenchemie
1
CFCs
1
Chemistry
1
Crutzen, Paul
1
FCKW
1
Fluorchlorkohlenwasserstoffe
1
Klimatologie
1
Nobel laureate
1
Nobelpreisträger
1
ORCA.nrw
1
Open Educational Resources
1
Ozon
1
Ozonloch
1
Ozonschicht
1
PowerPoint
1
Video
1
Workshop
1
atmospheric chemistry
1
chlorofluorocarbons
1
climatology
1
ddc:628
1
ozone
1
ozone hole
1
ozone layer
1