<Your Name>
<Address here>
<Your contact information>
Mr. Mulally
Customer Relationship Center
P.O Box 6248
Dearborn, MI 48126 
Dear CEO Alan Mulally,
I am writing to express my support for your companies focus on climate change caused by vehicle carbon emissions. I am glad to see your extensive report on ‘the business impact of climate change’, as well as your line of fuel efficient and electric cars. Though I realize that the main motivation for these vehicles is consumer demand and government pressure, I am nevertheless glad to see your company moving in that direction.
Assuming that you realize the implications of climate change, I would like to suggest that your company  a step further, and greatly reduce or phase out your line of SUVs, minivans, and pickup trucks, which are highly inefficient and are emitting large quantities of greenhouses gases (GHG) into the environment. As I am sure you are aware, the transportation sector accounts for the second largest portion of greenhouse gas emissions, at 28%¹. In 2003, 62% of transportation GHG emissions in the United States come from “Light-Duty” vehicles, and within that category “Light-duty trucks, which include SUV’s, minivans and pickup trucks account for 27% of those total emissions². Between 1990 and 2003, GHG emissions from light-duty trucks increased by 51%, compared with a 2% increase from passenger cars². The increase in light trucks from 19.9% in 1980 to 50.8% in 2001³, is contributing to the problem. The number of passenger cars sold in the U.S decreased slightly since 1980, the number of light trucks has more than tripled³.
           As one of the major automotive industries within the United States, I am asking Ford to take a stronger stance toward efficiency, by taking measures towards removing all cars that get less than 20mpg from the market. Please consider taking the reins as a world leader of the new energy economy. Though making every option available to the consumer has been the better business mantra in the past, the effects of climate change are as valid a catalyst for change as any, and the responsibility lies in its chief contributor’s hands.  I look forward to seeing Ford continue their work for the environment, and from hearing your opinion on this issue.
Sincerely,
<Your name>
<Your contact information>
<Your address>

¹.U.S. Environmental Protection Agency, 2010. U.S Greenhouse Gas Inventory.  http://www.epa.gov/climatechange/emissions/usgginventory.html  
²U.S Environmental Protection Agency, 2006. Greenhouse Gas Emissions from the U.S. transportation Sector. http://www.epa.gov/otaq/climate/420r06003.pdf
³Yacobucchi, Brent D., 2003. CRS report for Congress.  Sport Utility Vehicles, Mini-Vans, and Light Trucks: An Overview of Fuel Economy and Emissions Standards. http://ncseonline.org/nle/crsreports/03May/RS20298.pdf