NASA has released a rather fascinating video which illustrates the flow of carbon dioxide in the earth’s atmosphere over the period of a year. Using sophisticated computer modelling the animation gives life to the cycle of this notorious greenhouse gas for the year 2006. Of course, the situation has only worsened dramatically in the years since. You can find the video here: http://www.youtube.com/watch?list=PLiuUQ9asub3RHqKdK_XZSZ8I_981UPhvX&v=x1SgmFa0r04

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