Photo Gallery Saving the Planet
Participants at the June 21 Fridays for Future demonstration in Aachen, Germany: The climate protection movement launched by Swedish teenage activist Greta Thunberg last August has grown into a global phenomenon. It has become particularly popular in Germany, where tens of thousands of students skip classes each Friday to protest against global warming.
Carla Reemtsma is a volunteer spokeswoman for Fridays for Future. She says the media are to blame for the "cult of personality" that has developed around parts of the movement.
Notes are placed on a wall as part of the preparations for a major conference Fridays for Future is holding this week in Dortmund, Germany. It has many more events planned in the future.
Fridays for Future activist Friederieke Leppert in Hamburg.