Business Insider: We all know that greenhouse gasses are bad. And that climate change is bad and we need to stop emitting greenhouse gasses by the end of the century or risk dire climate-related consequences, such as dramatic sea level rise, extreme weather events, and food shortages. But what's the connection between emissions and these terrible scenarios? Bill Nye, The Science Guy, made the great video below a few years ago with Climate Reality that explains just that. While greenhouse gases like carbon dioxide...