Currently browsing posts about: Biofuel

Apr 7 2011

Cassava for biofuels?

It’s bad enough that corn is grown for ethanol, but cassava?  Many populations depend on cassava for food.

According to today’s New York Times, cassava is the new “go to” crop to burn for fuel.  Doing this, of course, prices cassava beyond what people can afford:

It can be tricky predicting how new demand from the biofuel sector will affect the supply and price of food. Sometimes, as with corn or cassava, direct competition between purchasers drives up the prices of biofuel ingredients. In other instances, shortages and price inflation occur because farmers who formerly grew crops like vegetables for consumption plant different crops that can be used for fuel.

The Times graph of the increase in use of food for biofuel is sobering:

New York Times, April 7, 2011

The rise in food prices has stopped temporarily, but prices are still an astonishing 37% higher than a year ago, according to the Food and Agriculture Organization

None of this makes sense to me.  We need a sensible food policy and a sensible energy policy.

Jul 21 2009

Use manure as a biofuel?

Here’s another USDA report well worth a look.  This one looks at the use of manure in the United States.  Interesting statistics: about 5% of cropland is fertilized with manure, and about half of that goes on cornfields.  So the obvious question seems to be that if there’s all that manure around, why not use it to produce biofuels?

Why does this seem like a bad idea to me?  It makes about as much sense to use manure as corn for biofuel.   Wouldn’t it be better to use all that CAFO (Confined Animal Feeding Operations) effluent to fertilize the other 95% of cropland?  Wouldn’t composting animal waste and using it on crops instead of chemical fertilizers be more sustainable and solve a lot of problems?  Or am I missing something here?