Fossil fuels continue to be our main source of energy. As the global warming debate heats up, many people are focused on reducing our dependence on fossil fuels in order to reduce greenhouse gas emissions. The truth is that there are also other extremely important reasons to stop using fossil fuels, and I feel that those reasons have completely slipped under the radar.
Mercury, an element naturally found in the environment, is also a very serious toxin. “Mercury exposure at high levels can harm the brain, heart, kidneys, lungs, and immune system of people of all ages. It has been demonstrated that high levels of methylmercury in the bloodstream of unborn babies and young children may harm the developing nervous system, making the child less able to think and learn.” 1
I found two articles that recap experiments on the correlation between mercury and autism. I am not saying that mercury is the root cause of autism, but it obviously plays a startling role. The first article is from PubMed and can be found here: Mercury, lead, and zinc in baby teeth of children with autism versus controls. The other article is a study from University of Texas Health Science Center at San Antonio. It can be found here: Study suggests link between environmental mercury, autism.
Not only does mercury make its way into the environment, it also makes its way into our food chain. In recent warnings by the EPA, fish may be contaminated with mercury. This news has been reported and accepted, but do you know how it happens? The Mercury, already in the environment, eventually settles in the water. While in the water, microorganisms transform Mercury to Methylmercury, a highly toxic form of mercury that can build up into high concentration in an organism.1 Everytime the fish eat the microorganisms, they build up their methylmercury concentrations. Every organism that eats these fish is also building up their methylmercury levels.
It is true that Mercury is naturally found in our environment through volcanic eruptions and gas released from under the surface, but in 1999 the EPA identified coal burning power plants as the number one source of environmental Mercury emission in the United States, emitting 43 tons of mercury each year. 2 It is true that the EPA has made their Mercury emissions much more strict since then, but coal burning power plants are still the primary source of electricity generation in the United States.
Figure 1: Net Generation Shares by Energy Source:
Total (All Sectors), Year-to-Date through March, 2007

Source: Energy Information Administration 3
As you can see in the figure above, Coal is still the overwhelming majority source of our energy production at 50%. This is not only unacceptable, but irresponsible. We sit at our desks and ponder why numerous medical conditions have become increasingly popular, while ignoring the fact that we continually pour toxins into our environment through power plants.
The EPA has taken numerous measures in the past decade to curb the release of Mercury into our environment, and I applaud them. Directly off of the EPA website, they released certain information and their progress.
EPA has taken a number of actions in recent years to significantly reduce mercury emissions from major sources other than power plants. Those actions include stringent regulations for municipal waste combustors, medical waste incinerators and hazardous waste combustors. When fully implemented, these actions will reduce total nationwide mercury air emissions by nearly 50 percent. 4
It is nice that they are actively reducing mercury from the environment, but only 50%? That means that we will still be emitting roughly 20 tons of mercury per year into the environment. This is acceptable to me as long as everyone understand that even though our coal power plants are emitting 50% less mercury, that does not mean that we should stop searching for alternative and renewable sources of energy. By reducing Mercury emissions by 50% and slowing weaning ourselves off of coal power and onto renewable sources, we can solve our energy problems safely and effectively.
So by building up our supply of renewable and alternative sources of energy, we are also helping secure the health of the future generations. Please support alternative energy by calling your local and state representatives, as well as join or support grassroot organizations. Remember, the 2008 election is the biggest and strongest way to voice your opinion. Be sure to vote for a candidate that strongly supports alternative, renewable, and clean energy. The following election in 2012 could be too late. For more information on how you can take action, visit www.missionenvironment.com for a list of ways you can help, as well as many other helpful websites.
Citations
- U.S. Environmental Protection Agency, “Basic Information | Mercury.” Accessed 6 July 2007. Available at http://www.epa.gov/mercury/about.htm
- U.S. Environmental Protection Agency, “EPA to Regulate Mercury and Other Air Toxics Emissions from Coal- and Oil-Fired Power Plants.” 6 July 2007. Available at http://www.epa.gov/ttn/oarpg/t3/fact_sheets/fs_util.pdf
- Energy Information Administration, “Generation and Consumption of Fuels for Electricity Generation, March 2007.” Accessed 6 July 2007. Available at http://www.eia.doe.gov/cneaf/electricity/epm/epm_sum.html
- U.S. Environmental Protection Agency, “EPA to Regulate Mercury and Other Air Toxics Emissions from Coal- and Oil-Fired Power Plants.” Accessed 6 July 2007. Available at http://www.epa.gov/ttn/oarpg/t3/fact_sheets/fs_util.pdf