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Ford Motor Company                                                                                         17225 Federal Drive
Environmental and Safety                                                                                   Suite 145
Engineering                                                                                                Allen Park, Ml 48101
                                                                                                        December 19, 2001

Subject: Preparation of Third U.S. Climate Action Report

Reference: Federal Register, Volume 66, page 57456-7, November 15, 2001.

Ford Motor Company (Ford) hereby submits comments to the Environmental Protection
Agency's November 15, 2001 Federal Register notice on the Preparation of Third U.S. Climate
Action Report. Our review of the draft U.S. Climate Action Report has uncovered a few issues
that should be addressed before the report is published. Suggested revisions to the document
follow. Minor changes of a typographical nature are found in Attachment 1.

Chapter 1: Introduction and Overview

Page 2, lines 29-38 - The first and last sentences of the paragraph are inconsistent with the tone
of the remainder of the document and appear to be more editorial than factual. Ford
recommends that the paragraph be revised as follows:
        Climate change is a przblc M thzt FSzquirzz 100% affert        Rd thO tet Of tho vorlila. This&
                                                                        an                               long-term problem,
        decades mn making, that cannot be solved overnight. A real solution must be durable, science-based, and economically
                    the
        sustainable. In particular, we seek an environmentally sound approach that will not harm the U.S. economy, which
        remains a critically important engine of global prosperity. We believe that economic development is key to protecting
        the global environment. In the real world, no one will forego meeting basic family needs to protect the global commons.
        Environmental protection is neither achievable nor sustainable without opportunities for continued development and
        greater prosperity. Our objective is to ensure a long-term solution that is environmentally effective, economically
        sustainable, and fair. Prmtoting thu gloabl awrirnmjnt is too im~portan a rorponsibility for anything lessr

Page 3, lines 9, 10 - Incorrectly represents the conclusions the NRC found in Chapter 5 of their
Report, C//mate Change Science; An Analysis of Some Key Questions, (NRC 2001). Ford
suggests the following clarification of the first sentence.
        Greenhouse gases are accumulating in the Earth's atmosphere in part, as a result of human activities, causing global mean
        surface air temperature and subsurface ocean temperature to nise.

Chapter 2: National Circumstances

Page 13, lines 7-1 1 - The fuel consumption of passenger cars included in the report is
consistent with the ORNL data for on-road fuel consumption. The wording in the paragraph
should make it clear that the values supplied represent the fuel consumption of the on-road fleet,
not the fuel economy of the new passenger car fleet. In addition, it would be beneficial to include
the source document for this and other technical data contained in the report. The paragraph
should be revised as follows:
        These increases have been significantly offset by enhanced efficiency. This can be attributed to a combination of
        factors, including the implementation of Corporate Average Fuel Economy (CAFE) standards for new cars, and
        improved average fuel consumption per kilometer, from a low of 18 liters per 100 kilometers (slightly over 13 miles per
        gallon) for the on-road passenger carrefleet in 1973 to I I liters per 100 kilometers (slightly over 21 miles per gallon) in
        1999.
Chapter 3: Greenhouse Gas Inventory

Page 7, lines 26-35 - Comparisons are made relative to energy requirements under "normal"
conditions. The definition of "normal" is not presented and, should be defined.

Page 10, lines 4-9 and 20-24 - The discussion of global warming potentials is a mixture of
references to GWPs and radiative forcing. Radiative forcing isthe "instantaneous" impact of
greenhouse materials on the atmosphere on the radiative properties of the atmosphere at the
tropopause. The GWP of a material is a measure of that material's absorption of infrared
radiation in the "atmospheric greenhouse window" relative to carbon dioxide (on a mass basis).
Unlike the radiative forcing of a material, GWP incorporates the lifetime of the material in the
atmosphere. References to radiative forcing should be removed from this section.
       Gases and particles in the atmosphere can contribute to the greenhouse effect both directly and indirectly. Direct
       effects occur when a gas itself is a greenhouse gas, iLe,it absorbs heat energy radiated fromt the earth'Is surface, or when
       a particle absorbs or reflects incomingsolar visible and ultraviolet light. Indirect rdiative forcings occurwhen
       chemiical orphysical transformations of the original gas or particle produce                         other greenhouse
       gases, when a gas influences the atmospheric lifetimes of other greenhouse gases, and/or when a gas or particle affects
       other atmospheric processes that alter the radiative balance of the Earth (e g., .ccloud formation or surface albedo).
       The concept of a global warming potential (GWP) has been developed to compare the ability of each greenhouse gas to
       trap heat in the atmosphere relative to another gas.

       The GWP ofagreenhouse gas is the ratio of global waringo radiat;e fzrcing both direta~dnd irdrx             from one
       unit mass of a greenhouse gas to that of one unit mass of C02 over a specified period of time. While any time period
       can be selected, the 100-year OWNs recommended by the IPCC and employed by the United States for policymnaking
       and reporting purposes were used in this report (IPCC 1996). GWP values are listed in Table 3-6.

Page 10, line 31-32 - In an equilibrium, carbon fluxes between all sinks and sources are exactly
balanced. This was the situation in pre-Industrial era times when the atmospheric concentration
Of CO remained constant at 275-280 parts per million for thousands of years. The fact that
      2
CO in the atmosphere has been increasing since about 1800 indicates that the carbon flow
    2
through the environment is not in balance, i.e., sources slightly outweigh sinks. Therefore the
last sentence should be changed to:
        When in equilibrium, carbon fluxes among these various reservoirs are fwaglytbalanced.

Page 12, lines 24-29 and reference number 14 - The Executive Summary of EPA's report "US
Greenhouse Gases: 1990-1999" indicates that in 1999, transportation activities (without
bunkers) accounted for 29.5% Of CO emissions from fossil fuel combustion as compared to
                                    2
31% reported on line 24. Even with the inclusion of bunkers, the contribution is only 30.8%.
These numbers require reconciliation, and the information for the other sectors should also be
checked.
Page 23, lines 8,9 - The 2001 IPCC report concluded that the overall effect Of S02-derived
aerosols on radiative forcing is negative. The sentence in lines 8 and 9 should be revised as
follows:
        The overall effect of SO,-derived aerosols on radiative forcing is believerd negative (IPCC 4W&6200 1).
Chapter 4: Policies and Measures

Page 13, lines 23-25 - The discussion on PNGV should be updated to reflect the latest status.
Since the focus of the program has changed to research long-term solutions via component and
system design, the last sentence in the paragraph should be deleted.

Chapter 6: Impacts and Adaptation

The discussion of impacts of climate change in this chapter is based on the U.S. National
Assessment in the 2000 NAST Report. This report remains highly controversial, and was, at
that time, the subject of considerable debate with regard to it scientific and policy discussions.
The most contentious aspects of the report were (1) the use of the most pessimistic projects of
potential climate impacts, with little or no discussion of the uncertainties involved in such
projections; and (2)the use of global climate models to predict impacts on regional climates
within the U.S.

Global climate models cannot be used to project changes in regional climate, primarily because
of insufficient spatial resolution and their inability to represent regional phenomena such as
clouds. As was pointed out when the National Assessment was in review, the regional
projections from the two climate models used often provide diametrically opposed projects for
regional climate, making it impossible to determine which (or either) is (are) correct. Further,
attempts to average the results from the two models are also without scientific basis.

Thank you for your attention to these comments. Please contact Peg Gutmann at 313-594-0400
if you have any questions.

                                              Sincerely,


                                              W. M. Kreucher
Attachment 1

Minor Comments

Chapter 1: Introduction and Overview

Page 3, line 40 - typographical error. The word 'us" should be changed to "is."
Chapter 2: National Circumstances

Page 13, lines 28-43 - It is unclear how the section on TEA-21 aligns with the discussion on the
transportation energy consumption. The paragraph would be better placed in another chapter,
such as Chapter 4.

Chapter 4: Policies and Measures

Page 1, line 20 should read 'The United States government is....

Pages 5, 10, 11 - Many of the symbols used in the document are not being converted properly
by the PDF writer - I"' is being substituted for bullets.
Chapter 5: Projections

Page 15: The table reference on lines 3 and 24 should be to Table 5-7.

Various pages - Many of the symbols used in the document are not being converted properly by
the PIDF writer - "B" is being substituted for dashes and "="for apostrophes.

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CAR Email 12.19.01 (a)

  • 1. G? 10 K Ford Motor Company 17225 Federal Drive Environmental and Safety Suite 145 Engineering Allen Park, Ml 48101 December 19, 2001 Subject: Preparation of Third U.S. Climate Action Report Reference: Federal Register, Volume 66, page 57456-7, November 15, 2001. Ford Motor Company (Ford) hereby submits comments to the Environmental Protection Agency's November 15, 2001 Federal Register notice on the Preparation of Third U.S. Climate Action Report. Our review of the draft U.S. Climate Action Report has uncovered a few issues that should be addressed before the report is published. Suggested revisions to the document follow. Minor changes of a typographical nature are found in Attachment 1. Chapter 1: Introduction and Overview Page 2, lines 29-38 - The first and last sentences of the paragraph are inconsistent with the tone of the remainder of the document and appear to be more editorial than factual. Ford recommends that the paragraph be revised as follows: Climate change is a przblc M thzt FSzquirzz 100% affert Rd thO tet Of tho vorlila. This& an long-term problem, decades mn making, that cannot be solved overnight. A real solution must be durable, science-based, and economically the sustainable. In particular, we seek an environmentally sound approach that will not harm the U.S. economy, which remains a critically important engine of global prosperity. We believe that economic development is key to protecting the global environment. In the real world, no one will forego meeting basic family needs to protect the global commons. Environmental protection is neither achievable nor sustainable without opportunities for continued development and greater prosperity. Our objective is to ensure a long-term solution that is environmentally effective, economically sustainable, and fair. Prmtoting thu gloabl awrirnmjnt is too im~portan a rorponsibility for anything lessr Page 3, lines 9, 10 - Incorrectly represents the conclusions the NRC found in Chapter 5 of their Report, C//mate Change Science; An Analysis of Some Key Questions, (NRC 2001). Ford suggests the following clarification of the first sentence. Greenhouse gases are accumulating in the Earth's atmosphere in part, as a result of human activities, causing global mean surface air temperature and subsurface ocean temperature to nise. Chapter 2: National Circumstances Page 13, lines 7-1 1 - The fuel consumption of passenger cars included in the report is consistent with the ORNL data for on-road fuel consumption. The wording in the paragraph should make it clear that the values supplied represent the fuel consumption of the on-road fleet, not the fuel economy of the new passenger car fleet. In addition, it would be beneficial to include the source document for this and other technical data contained in the report. The paragraph should be revised as follows: These increases have been significantly offset by enhanced efficiency. This can be attributed to a combination of factors, including the implementation of Corporate Average Fuel Economy (CAFE) standards for new cars, and improved average fuel consumption per kilometer, from a low of 18 liters per 100 kilometers (slightly over 13 miles per gallon) for the on-road passenger carrefleet in 1973 to I I liters per 100 kilometers (slightly over 21 miles per gallon) in 1999.
  • 2. Chapter 3: Greenhouse Gas Inventory Page 7, lines 26-35 - Comparisons are made relative to energy requirements under "normal" conditions. The definition of "normal" is not presented and, should be defined. Page 10, lines 4-9 and 20-24 - The discussion of global warming potentials is a mixture of references to GWPs and radiative forcing. Radiative forcing isthe "instantaneous" impact of greenhouse materials on the atmosphere on the radiative properties of the atmosphere at the tropopause. The GWP of a material is a measure of that material's absorption of infrared radiation in the "atmospheric greenhouse window" relative to carbon dioxide (on a mass basis). Unlike the radiative forcing of a material, GWP incorporates the lifetime of the material in the atmosphere. References to radiative forcing should be removed from this section. Gases and particles in the atmosphere can contribute to the greenhouse effect both directly and indirectly. Direct effects occur when a gas itself is a greenhouse gas, iLe,it absorbs heat energy radiated fromt the earth'Is surface, or when a particle absorbs or reflects incomingsolar visible and ultraviolet light. Indirect rdiative forcings occurwhen chemiical orphysical transformations of the original gas or particle produce other greenhouse gases, when a gas influences the atmospheric lifetimes of other greenhouse gases, and/or when a gas or particle affects other atmospheric processes that alter the radiative balance of the Earth (e g., .ccloud formation or surface albedo). The concept of a global warming potential (GWP) has been developed to compare the ability of each greenhouse gas to trap heat in the atmosphere relative to another gas. The GWP ofagreenhouse gas is the ratio of global waringo radiat;e fzrcing both direta~dnd irdrx from one unit mass of a greenhouse gas to that of one unit mass of C02 over a specified period of time. While any time period can be selected, the 100-year OWNs recommended by the IPCC and employed by the United States for policymnaking and reporting purposes were used in this report (IPCC 1996). GWP values are listed in Table 3-6. Page 10, line 31-32 - In an equilibrium, carbon fluxes between all sinks and sources are exactly balanced. This was the situation in pre-Industrial era times when the atmospheric concentration Of CO remained constant at 275-280 parts per million for thousands of years. The fact that 2 CO in the atmosphere has been increasing since about 1800 indicates that the carbon flow 2 through the environment is not in balance, i.e., sources slightly outweigh sinks. Therefore the last sentence should be changed to: When in equilibrium, carbon fluxes among these various reservoirs are fwaglytbalanced. Page 12, lines 24-29 and reference number 14 - The Executive Summary of EPA's report "US Greenhouse Gases: 1990-1999" indicates that in 1999, transportation activities (without bunkers) accounted for 29.5% Of CO emissions from fossil fuel combustion as compared to 2 31% reported on line 24. Even with the inclusion of bunkers, the contribution is only 30.8%. These numbers require reconciliation, and the information for the other sectors should also be checked. Page 23, lines 8,9 - The 2001 IPCC report concluded that the overall effect Of S02-derived aerosols on radiative forcing is negative. The sentence in lines 8 and 9 should be revised as follows: The overall effect of SO,-derived aerosols on radiative forcing is believerd negative (IPCC 4W&6200 1).
  • 3. Chapter 4: Policies and Measures Page 13, lines 23-25 - The discussion on PNGV should be updated to reflect the latest status. Since the focus of the program has changed to research long-term solutions via component and system design, the last sentence in the paragraph should be deleted. Chapter 6: Impacts and Adaptation The discussion of impacts of climate change in this chapter is based on the U.S. National Assessment in the 2000 NAST Report. This report remains highly controversial, and was, at that time, the subject of considerable debate with regard to it scientific and policy discussions. The most contentious aspects of the report were (1) the use of the most pessimistic projects of potential climate impacts, with little or no discussion of the uncertainties involved in such projections; and (2)the use of global climate models to predict impacts on regional climates within the U.S. Global climate models cannot be used to project changes in regional climate, primarily because of insufficient spatial resolution and their inability to represent regional phenomena such as clouds. As was pointed out when the National Assessment was in review, the regional projections from the two climate models used often provide diametrically opposed projects for regional climate, making it impossible to determine which (or either) is (are) correct. Further, attempts to average the results from the two models are also without scientific basis. Thank you for your attention to these comments. Please contact Peg Gutmann at 313-594-0400 if you have any questions. Sincerely, W. M. Kreucher
  • 4. Attachment 1 Minor Comments Chapter 1: Introduction and Overview Page 3, line 40 - typographical error. The word 'us" should be changed to "is." Chapter 2: National Circumstances Page 13, lines 28-43 - It is unclear how the section on TEA-21 aligns with the discussion on the transportation energy consumption. The paragraph would be better placed in another chapter, such as Chapter 4. Chapter 4: Policies and Measures Page 1, line 20 should read 'The United States government is.... Pages 5, 10, 11 - Many of the symbols used in the document are not being converted properly by the PDF writer - I"' is being substituted for bullets. Chapter 5: Projections Page 15: The table reference on lines 3 and 24 should be to Table 5-7. Various pages - Many of the symbols used in the document are not being converted properly by the PIDF writer - "B" is being substituted for dashes and "="for apostrophes.