Why should we use biodiesel rather than regular petroleum diesel?

The combustion of biodiesel produces less carbon dioxide, sulfur dioxide and particulates than that of regular diesel. This causes less global warming from the greenhuse effect and less sulfur dioxide pollution meaning less acid rain and damage to vulnerable strucures such as those made from limestone and less harmful pH changes in cartain animal habitats. Particulates can contribute to global dimming, which is reduced when using biodiesel in preference to petroleum diesel. It is also a sustainable and renewable resource because it is manufactured from oil extracted from crops, which also absorbs carbin dioxide, making it a carbon neutral process. Additionally, the use of biodiesel allows careful conservation of the limited supply of alternative non renewable fuels. Conversely, biodiesel produces more nitrogen oxides than regular petroleum, which contribute to acid rain and particulate formation, which are damaging to the environment. Deforestation is required to accomodate the vast expanses of land required for cultivation and this can destroy amimal habitats, reducing biodiversity. When large areas of land are used for biodiesel manufacture, food shortages may arise due to a lack of space for food crops. Also, the crops used may not be reliable enough to ensure a high yield and efficient successful manufacture rate.