In the past century Carbon Dioxide emissions have increased; some scientist say that is the accumulation of this gas and other green house in the atmosphere for a very long period the causing of this increasing change in the world (Iwata, 326). Other argue that it is not a cause that is just a coincidence, that actually the Carbon Dioxide emissions are not a threat to the world. Roger Bezdek, a consultant to energy companies, said “CO2 is basically plant food, and the more CO2 in the environment the better plants do” during an event hosted by the United States Energy Association. (The Washington Post). This controversy has made the organizations in charge of regulation to start looking into make the laws and regulations stricter. But before doing this the negative effects need to be analyzed.