Some may argue that biofuels are...
1. Using up more and more lands to plant crops in order to be produced. This may lead to loss of habitat for various     species of animals and plants, as well as reducing the amount of food supply for people. Consequently, food prices     may increase as well.
   (“Novozymes | Fuel”)
          However, according to the figure below biofuels do not take up as much lands as implied:

2. Not responsible for releasing carbon dioxide, yet, they emit nitrous oxides (NOX), which can also contribute to the     greenhouse effect.
           (“NASA: Road”)
          However, nitrous oxides (NOX) are not as abundant as carbon dioxide and is not considered a          ‘driver’ of global warming.
 
Make a Free Website with Yola.