Who can say for certain whether or not man made global warming is true or false Nobody right, I mean no one can truly predict the future of the physical planet. Does this mean that humans should disregard the possible outcomes by either choosing to do nothing or by simply taking no action? I believe all of the questions are answered in the following video by using some simple logic and breaking down the outcomes. Please just take a few minutes out of your day and have a look at this brilliant video.