The Case Against Biodiesel: A Rebuttal
The bio diesel industries have been under attack by some critics who have used some false statistics and misrepresentation to make their point. In this essay, I will be looking at the case against biodiesel, the fallacy of the numbers that have been used, and what the critics are missing. I will also be offering my own thoughts on the matter.
2. The Case Against Biodiesel
The case against biodiesel is that it takes more energy to produce than it saves. The argument goes that since it takes energy to grow crops, process them into fuel, and then transport the fuel, the net energy gain is not as high as we would like it to be. There are also other environmental concerns associated with biodiesel, such as the impact of growing crops for fuel on ecosystems and the release of greenhouse gases during combustion.
3. The Fallacy of the Numbers
The main problem with the arguments against biodiesel is that they are based on false or misleading information. For example, one critic claims that it takes 29% more energy to produce biodiesel from soybeans than it does to produce gasoline from crude oil (Pimentel, 2007). However, this number is misleading because it includes all of the energy used in the entire supply chain for both products, not just the energy used to produce the fuel itself. When you look at just the energy used to produce the fuel, biodiesel from soybeans only requires 11% more energy than gasoline from crude oil (Searchinger, 2008).
Similarly, another critic claims that producing 1 gallon of biodiesel emits 37% more greenhouse gases than producing 1 gallon of gasoline (Pimentel, 2007). However, this number again includes all of the emissions throughout the entire supply chain for both products. When you look at just the emissions from combustion, biodiesel emits 10% less greenhouse gases than gasoline (Searchinger, 2008).
4. What the Critics are Missing
What the critics are missing is that biodiesel has other benefits that offset its higher energy use and emissions. For example, biodiesel can be produced from a variety of feedstocks including recycled cooking oil, which has a very low energy use and emit very few greenhouse gases. In addition, biodiesel can be used in any diesel engine with no modifications, whereas other renewable fuels require specialised equipment. Finally, biodiesel has superior lubricity properties compared to petroleum diesel, which can extend engine life and reduce maintenance costs.
In conclusion, I believe that biodiesel is a promising alternative fuel source that has been unfairly attacked by some critics. The arguments against biodiesel are based on false or misleading information and fail to take into account all of the benefits that this renewable fuel offers. I believe that biodiesel has great potential to help reduce our dependence on fossil fuels and should be further developed and promoted as a cleaner and more sustainable alternative fuel source.