On our plates or in our tanks – energy from biomass

Video Video (01:29 minutes):Presents the advantages and disadvantages of biofuels. The video starts by describing the advantages of using biofuels. During photosynthesis, the same amount of carbon dioxide is “consumed” by corn, rapeseed, and sugarcane plants as is released when these plants are burned as fuel. The energy produced from biomass is therefore considered climate-neutral.Nevertheless, the increased use of biofuels has negative consequences. Plants used for biofuel are no longer available as food, and the rising demand causes an increase in food prices. Two diagrams serve to illustrate the problem.This video is an excerpt from the teaching DVD, „Das grüne Paradoxon – Warum die Erde wärmer wird".