Two degrees is the target for limiting the global temperature increase. But even that limit will have a dramatic effect on the world’s climate. SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews Follow us on Twitter: https://twitter.com/skynews and https://twitter.com/skynewsbreak Like us on Facebook: https://www.facebook.com/skynews For more content go to http://news.sky.com and download our apps: