Necker Island (British Virgin Islands) world, the challenge begins at the annual Consumer Electronics Show in Las Vegas with the top 10 new innovations progressing to the finals at Necker Island where Branson joins the judging panel along with technology figures and investors from Silicon Valley. The Necker Cup, an exhibition tennis tournament held at the end of the tennis season, has been held on the island annually since 2012. In February 2017, former U.S. President Barack Obama and his wife Michelle visited Necker as guests of Sir Richard Branson. On August 22, 2011, The Great House burned down in a blaze believed to be
Richard Branson in the net removal of anthropogenic, atmospheric greenhouse gases each year for at least ten years without countervailing harmful effects. This removal must have long-term effects and contribute materially to the stability of the Earth's climate. Branson also announced that he would be joined in the adjudication of the prize by a panel of five judges, all world authorities in their respective fields: Al Gore, Sir Crispin Tickell, Tim Flannery, James E. Hansen, and James Lovelock. In July 2007, Branson purchased his Australian home, Makepeace Island, in Noosa. In August 2007, Branson announced that he bought a 20-percent stake in