Journal Science just released an article with a study that claims Bio Fuels may actually increase Global Warming, compared to regular fuels. What the study looked at was the whole picture. For example if Corn in the US is made into Ethanol, where is the replacement crop going to come from? It seems that new land will be developed for crops which increases Global Warming due to more green house gases released. The hope is non-food, such as green waste can be used for Bio Fuels in the future at an economic cost.
Of course, if green waste is used I am not sure what this will do for the subsidiaries in the US for Corn Ethanol. Another part of using green waste, is much of it is contaminated with pesticides and fertilizers (lawn care products), which also takes care of the disposal issue of green waste .
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