Human generations been farming for everyday dining needs. Even today we can still see a lack of food from our country. We still can not self-sufficient in food. With the growth of both parties between human populations and the car, if we're going to use food that is suppose to be a need that energy, whether we want to feed people or cars?
There will be no land, water or soil can be productive enough to replace all our energy needs. Production of biodiesel itself also uses a lot of land and energy. Production of crops such as palm or distance will require a fertilizer made from natural gas, a pesticide which is also derived from petroleum, the input of energy such as fuel for tractors, trucks, and refining plant. In addition, the land will also need water and should reduce the fertility of the soil.
When we look at the energy used, the biodiesel will use more energy in its production stage compared to regular petroleum, from exploration wells to be used in cars.
With the competition between food and human energy needs, then with the depletion of supply and high demand will raise the price of the commodity so that by the end of the chain then the final product sold to customers will be more expensive. For example, when palm oil prices rise, because oil palm is the basic ingredient for the manufacture of ice cream, biscuits, butter, cooking oil to soap and shampoo, it can be imagined consequences of rising palm oil prices to the inflation and our economy.
The businessman was with the price increase would be their incentive to plant more. And if we heterogeneous forest full of useful plants and animals that depend on these ecosystems, will be destroyed in the presence of homogeneous forests of the great estates. Finally is the destruction of plant and animal species that are important to our natural balance.
The best solution remains to find the best solution alternative renewable energy from the water / waves, wind and sunlight.