Paul in promo for "An Inconvenient Sequel"
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Paul, Bono and other musicians appear in promo for "An Inconvenient Sequel," which is a follow-up to Al Gore's previous film "An Inconvenient Truth." The documentary is about climate change and the future of our planet. http://people.com/movies/paul-mccartney-bono-adam-levine-video-climate-change/