What Is Carbon Neutral and Biofuels

The video discusses fossil fuels like coal, oil, and natural gas, highlighting their role in increasing atmospheric carbon dioxide levels. It introduces biofuels, such as firewood, biogas, and gasohol, as alternatives that can be carbon neutral if managed sustainably. The process of biogas production through anaerobic digestion is explained, along with its applications. The video also covers the challenges of biofuel production, including the use of agricultural land and fossil fuels. Finally, it explores future biofuel technologies, such as algae cultivation, which could offer sustainable energy solutions.

Discuss the environmental impact of growing biofuel crops.

What are the potential benefits of using oil-rich algae for biofuel production?