Cincinnatus BLOG *** Political Commentary - Social Commentary

You are Browsing the February 2009 Archive:

Coal – Can We Clear the Air?

Coal, which is by far the dirtiest fossil fuel, generates half of the electricity in the United States and 82% of the carbon dioxide emissions created by power production. Since it is abundant and cheap, it is likely to continue to play a major role in electricity generation for the foreseeable future. In the rhetoric of its champions, The United States is the Saudi Arabia of coal. Despite the introduction of wind, solar and other clean technologies, the Department of Energy in its Annual Energy Outlook 2008 projects a small, 0.03% annual increase, in coal utilization through 2015. Surprisingly, maybe shockingly, they expect that growth rate to accelerate to 1% from 2015 to 2030 unless there are restrictions on carbon dioxide emissions or new clean technology… Continue reading | 3 Comments

Natural Gas - The All-American Clean Fuel

The key to producing less carbon dioxide emissions from fossil fuels is to use the fuel with the lowest carbon to hydrogen ratio. Coal is the least desirable because there are roughly 2 carbons for each hydrogen; oil is cleaner because it has the inverse ratio of approximately one carbon for 2 hydrogen molecules; and best of all is methane (CH4), with 4 hydrogen molecules for each carbon molecule. Although natural gas is primarily methane, it does contain, some longer chain hydrocarbons such as ethane, propane, butane, pentane etc. that make it slightly less desirable than pure methane. Thus, the reduction in carbon dioxide emissions when natural gas is substituted for gasoline in an automobile is about 25-30%.

Fossil Fuel Emission Levels

- Pounds per Billion… Continue reading | 6 Comments