Profit is motion of every activity. Profit at any price is disaster. This title concern to something strange happen around us. Everyone has some small knowledge, or at least hear about biogas like solution for fuel. Few people go inside the problem.
Animal manure was centuries ago main resource for fertilizing land. Spread on fertile land on winter, wait for putrefaction, ridging the land in spring are elementary things known by all land farmers. Land cultivation is science. The main element which enrich the power of land is urea. As a consequence of industry growth, balance between number of animals, and land tilling decreased considerably.
New technologies use artificial fertilizer, produce in factories from row material gas, where they obtain nytrogen the main resource for urine thus produce different categories of land fertilizer.
Tilling grains, nourishing domestic animals we have as a final product instead of meat taste of plastic when eat.
Then if use animal manure for biogas production, and gas for land fertilizing you can properly tell: eat plastic and drive on food.
As a result of profit at any price.