Leonardo DiCaprio's social media has often been a space for activism and empowerment, but fans certainly weren't expecting to see his latest pictures.DISCOVER: How eco are royal homes? Prince Charles, Prince Harry and moreThe actor shared photographs of himself at the COP26 Climate Summit held earlier this week, reposting a series by António Guterres, the United Nations Secretary-General.The post included two pictures of Leonardo with the Secretary-General, having a discussion in one and then