The other day I had the good fortune to listen to Michael Pollan (www.michaelpollan.com) a Berkeley professor who has written several books about food, its globalization and the advantage of small farms at the regional / local or family! An example: How many types of apples can be found today in a supermarket, and how many types apples exist (or existed) in the past? It's funny, but the trend towards globalization of the food not only reduces the range, but has negative effects on crops (application of fertilizer on a large scale) and soil productivity.
All this may sound very 'liberal' and 'cool', it sounds better when you're sitting next to Pollan is a world expert in soil science (Sposito) and the other side is one of the leading scientists in genetic engineering of crops (I. Chapela).
The latter, Ignacio Chapela, is an interesting guy. Denounced in their day to the University of Berkeley with a pharmaceutical aligned against him, all for the publication of an article in showing the penetration of transgenic corn on corn unchanged (http://es.wikipedia.org/wiki/Ignacio_Chapela)
Today I read an article in NYTimes the lobby of the engine and climate change deniers. The same day the state of California passed a law pioneer.
God forbid single thought!
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