Greta Thunberg. She spent two days and nights crossing the Atlantic. Aboard an 18 meter yacht, with no toilet and with minimal sleeping facilities and food, she and her father travelled to New York. She came to tell the representatives of the nations on this earth about a future. To be precise, a ruined future.

Since time immemorial, since Jeremiah in the stories of the prophets, there have always been people who warn of pending disaster