Biodiesel is a renewable fuel made from organic materials such as vegetable oils, animal fats, or recycled cooking grease. Through a process called transesterification, these feedstocks are chemically converted into biodiesel, which can be used as a direct replacement or blended with petroleum diesel in diesel engines.

Biodiesel offers several environmental benefits, including reduced greenhouse gas emissions, improved air quality due to lower levels of pollutants like sulfur and particulate matter, and decreased reliance on fossil fuels. Additionally, biodiesel production can contribute to local economies and agricultural diversification by utilizing surplus crops or waste materials.

As a versatile and sustainable alternative to conventional diesel, biodiesel plays a crucial role in the transition towards cleaner transportation fuels and reducing the carbon footprint of the transportation sector.