How Does Biodiesel Affect U.S Energy Consumption?

Renewable Energy Access – May 8, 2007

There are a lot of good reasons to want to find alternative sources of liquid fuel.  I know that this site has a wide range of believers regarding global warming but it is likely that all can agree that the United States needs more sources of liquid fuel than our current supply that comes from nations that don’t like us but tend to like our money.


Biodiesel Jetta uses far less fossil fuels than a Prius, says university biodiesel group

AutoblogGreen – May 9, 2007

AutoblogGreen is a very well written blog and you should consider it in your regular reading. This particular article discusses a study by Univ. of New Hampshire that tried to determine the fuel footprint of a variety of vehicles that are generally considered to be fuel efficient.

The one thing that I think is missing in this analysis (and tends to be missing in many articles about hybrid vehicles) is the environmental cost of huge batteries. Many of these batteries contain metals that are not good for the environment and take energy and special care to build and to dispose of after their life is over.


Cars By The Numbers

Environmental Defense – March 20, 2007

This is an easy article since it should have no controversy.  It is simply a list of statistics regarding automobiles.  Since many people think that we should cut back on auto emissions to reverse global warming, this should be an interesting read.

  • 232 million – Number of registered vehicles in the U.S.
  • 600 gallons – Average amount of gasoline consumed by one U.S. car each year.
  • 12,000 pounds – Amount of carbon dioxide emitted from one U.S. car each year.
  • 240 – Number of trees needed to absorb the 12,000 pounds of carbon dioxide emitted from one U.S. car each year.


Car Makers Mobilize Over CO2 Curbs – April 9, 2007

This article discusses how the automotive industry is trying to deal with legislative restrictions on carbon dioxide production of its products. This is all part of the political process which as reader of my blog know I think is premature. When we are still trying to figure out all of the science of this issue, the only politics that we should be discussing is how much money do we spend on doing full and accurate models.

Auto makers are shifting into high gear to protect themselves under a federal global-warming cap they see around the corner. Cars and light trucks generate about one-fifth of U.S. emissions of carbon dioxide, the main global-warming gas, which is produced when fossil fuel is burned. With pressure for U.S. emission curbs intensifying, auto makers are mobilizing to try to shift the potential economic pain onto someone else.


Amid Fuel-Economy, Emissions Debate, GM’s Lutz Says Horsepower Still Sells

Wall Street Journal – April 9, 2007

Interesting article on the global warming problem. Can we change it if it is the fault of humans? I have read some extremists on the subject that say that we need to dramatically reduce the amount of CO2 that we put into the atmosphere. Some say that this decrease in carbon dioxide would need to be in the range of 50% in 5 years. The current proposals in Congress are more conservative – 4% increase in fuel economy per year for 10 years (which is about 34% in 10 years).