Some folks are familiar with how we heat our home with biodiesel, with real success. The kind we use is made from vegetable oil that had its first life in restaurants, (and is usually discarded in places less funky and sustainable than Oregon). All of which is another reason I love living here.
My understanding had been that traditional (not recycled) biodiesel was not sustainable, i.e. uses so many fossil-fuel inputs it’s no improvement over just using, for instance, petroleum. But yesterday I read biodiesel yields 3.5 to 1 according to newer research.
I’d like to hear other people’s evaluation of this report, since the author is the National Biodiesel Board. They’re assuming soybeans as the source.
Biodiesel is different from ethanol, and it’s taken me awhile to understand the difference. Ethanol is made from corn, which strictly speaking is a renewable resource. However, agribusiness uses ENORMOUS fossil-fuel inputs to grow that corn. I think ethanol takes us down the wrong trail altogether.
For one thing, growing food to feed gas-tanks when millions in the world are either starving or without food security is unethical. For another, to think that ethanol can move us toward energy independence from the Mideast I’m afraid it is a wet dream born of addiction to the fossil-fuel-based way we are living in the U.S. As Thom Hartmann writes so lucidly in his book The Last Hours of Ancient Sunlight, we have to start living differently, consuming differently, than we are doing.
What I maintain is that in many cases, we can be happier in the process. More tomorrow.