The co-founder of Extinction Rebellion has caused fury by saying the Holocaust was "just another f***ery in human history".
In an interview with German newspaper Die Zeit, Roger Hallam said: "The fact of the matter is, millions of people have been killed in vicious circumstances on a regular basis throughout history."
The subject came up when he said during the interview that people should fight climate change with the same emotion as people regard Auschwitz, the largest Nazi camp where more than a million Jews were murdered.
Emotionality is the only way you can get people to do something," he said.
