Al Gore

Nobel Peace Prize winner and former Vice President Al Gore is possibly the most famous environmental activist of all time. He has been involved in issues relating to climate change since the late 1970s, but of course became best known for this as the subject of the 2006 documentary ‘An Inconvenient Truth’. This was followed up in 2017 with ‘An Inconvenient Sequel: Truth to Power’, which shows the progress that has been made in encouraging world leaders to tackle climate change. Our prediction: He’s going to be remembered when many US presidents are going to be forgotten.

Location: Nashville, United States

Age: 69

Twitter: @AlGore