caption: The image shows a man standing in front of a crowd of people, some of whom are holding placards with text on them. He is wearing a bag and holding a microphone with a stand. There is a speaker with a mic stand in the foreground, and in the background there are trees, buildings with windows, a hill, and a sky with clouds. The scene is taking place in the town of Heidelberg, Germany, where the people are protesting against climate change.