PJ Crowley: Climate Is An Issue For Donald Trump | Squawk Box | CNBC

P.J. Crowley, former assistant secretary of State and "Red Line" author, says the climate issues is an area that could undermine America's perception of leadership around the world. » Subscribe to CNBC: http://cnb.cx/SubscribeCNBC About CNBC: From 'Wall Street' to 'Main Street' to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more. Connect with CNBC News Online Get the latest news: http://www.cnbc.com/ Find CNBC News on Facebook: http://cnb.cx/LikeCNBC Follow CNBC News on Twitter: http://cnb.cx/FollowCNBC Follow CNBC News on Google+: http://cnb.cx/PlusCNBC Follow CNBC News on Instagram: http://cnb.cx/InstagramCNBC PJ Crowley: Climate Is An Issue For Donald Trump | Squawk Box | CNBC