Bill Nye on Humanity's Biggest Engineering Challenge

When a fan asks what is the most revolutionary engineering challenge humanity will face in the coming decades, former engineer Bill Nye the Science Guy doesn't hesitate to tell co-host Eugene Mirman that it's climate change. But NASA astronaut Mike Massimino suggests a few other issues that engineers will need to solve as well. Watch this Behind the Scenes video now, and then listen to the entire podcast at http://www.startalkradio.net/show/cosmic-queries-with-bill-nye-and-astro-mike/ And if you love StarTalk Radio, don't miss out on any StarTalk news. Sign up for our free newsletter: http://www.startalkradio.net/newsletter/youtube/ Catch up with StarTalk Radio around the web: iTunes - http://bit.ly/SOHDg6 SoundCloud - https://soundcloud.com/startalk Stitcher - http://www.stitcher.com/podcast/startalk Twitter - https://twitter.com/#!/StarTalkRadio Facebook - http://www.facebook.com/StarTalkRadio Google+ - http://googleplus.startalkradio.net Pinterest - http://pinterest.com/startalk/ Tumblr - http://startalkradio.tumblr.com/ Instagram - http://instagram.com/startalkradio