Here is video of President Obama challenging world leaders at the United Nations to join the United States in fighting "climate change" (they don't say Global Warming anymore).
Obama said "time is running out" to avoid a coming catastrophe, but he proclaimed "we can reverse it."
NOTE: Pay attention to how Obama makes almost no eye contact with his audience. His head just bobs side to side looking at the two teleprompters. It gets on your nerves quickly if you focus on that.