Bill Gates gives speech demanding action on climate change to moguls who flew into Sun Valley on private jets: Michael Bloomberg, Anderson Cooper and Diane von Furstenberg enjoy penultimate day of billionaire summer camp
Bill Gates on Friday gave a speech about climate change to billionaires and millionaires gathered in Sun Valley, Idaho
So many of the attendees flew in on private jets, to hear the climate change talk, that the air space from as far afield as Michigan and Canada had to be temporarily closed
The annual event, now in its 37th year, has drawn its usual gathering of luminaries from tech, industry, media and sport