Carbon Dioxide levels

Carbon dioxide is one of the major pollutants, that aid to global warming. America is one of the biggest contributors to global warming. America makes up 4% of the world's pollution, and produces 25% of the worlds carbon dioxide pollution. The United States emits more carbon dioxide then China, India, and Japan combined.

The Following is from: http://sustainability4future.blogspot.com/2007/12/science-of-global-warming.html