You may remember the Cosmos television series hosted many years ago by Carl Sagan on the wonders of the universe.  Recently Fox Television has been broadcasting a remake of the series with updated science and graphics that is really excellent.  This week’s episode is an overview of how carbon dioxide affects climate and atmospheric temperatures and the science behind our understanding of how this relationship works.  If you are interested in watching it, a number of past episodes, including this one, are available at  If you get questions about greenhouse warming or just want to understand it better yourself, then I would encourage you to view this hour-long program and learn more about it.  I give Fox TV credit for airing such an interesting science-based program.