Below is an article from Fortune magazine by Lester Brown. Mr.Brown is an important figure in food security and sustainable development. A decade ago, he raised the question that China could not feed such a big population. And even if China could make that, China did not have enough water to plant crops. Such disputes have been lasting for a long time globally. Some of his books have been translated and introduced to China, such as "Plan B 2.0".
In the Fortune article, Mr.Brown argued that the echanol boom is starting to cut into the world's grain supply. That means, because the development of biofuel, more grains have been used to produce energy, instead of food, which would undermine the food security of the United States, and even the whole world.
I think this is a critical issue. But it is hard to get a conclusion shortly. Some people still greatly support the development of biofuel. One Chinese scientist is opimistic on this. He has two points: First, biofuel can be also produced by using non-food crops, not necessarily grains and corns. Second, in China, there are a lot of margin lands, which cannot be used to grain-farming, but can be used to produce biofuel materials.
I have no idea.
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