You must be a viewer of CNN and the three networks. The world is always going to hell in a handbasket and in joyous harmony at the same time. It's called life. Parts of Alaska have seen their average temperature rise by almost 7 degrees during the last 50 years, while stretches of Siberia are considering abandoning some outposts because of increased cold and snowfall. The news reported with great fanfare the breaking off of several icebergs in Antartica recently and their threats. You had to read the fine print to learn that Antartica's overall tonnage of ice has been increasing with some areas getting 13 to 24 additional feet of permanent snow since the first measurements. In a nutshell, the world is constantly changing and has been long before man made the combustion engine. Our best options are to conserve wisely, diversify our energy-(ethanol, biodiesel, biomass, etc),and live as free people far removed from authoritarians, socialists, and greens [which are just like watermelons with a thin green exterior and all red inside].