Cummins Inc. 2007 Sustainability Report

Other Significant Direct Air Emissions
Category (Metric Tons) 2004 2005 2006
NOx 2,490 2,556 2,855
CO 553 564 629
PM10 167 171 192
VOC
Number of Reporting sites
854 791 2,537
NOx, CO and PM10 79 229 229
Number of Reporting sites VOCs 38 38 53
Data for NOx, CO, PM and CO 2 for 2005 and 2006 were developed from the 229 sites reporting fuels and electricity
for the GHG inventory. Totals for VOC for these same years are based on data from the manufacturing and larger
non-manufacturing sites, of which, 38 reported in 2005 and 53 in 2006.
Emissions from diesel fuel used in product testing applications and No. 2 fuel oil, propane and natural gas used in boilers
and furnaces were derived using EPA AP-42 Compilation of Air Pollutant Emission Factors, 1996.
AP-42 emissions conversions used for large diesel engines are based on obsolete technology, so emissions data is overstated.
Energy and Emissions
Direct and Indirect Energy Use
The energy data provided represent electricity used
at the Company’s facilities to generate power for
manufacturing operations, power produced and
sold to the regional grid and power used for facility
heating and cooling purposes. These data are
derived from 229 sites in scope of Cummins Climate
Leaders GHG inventory, which are the sources of the
greenhouse gas emissions in the Cummins inventory
presented in the table on pages 64 and 65.
Historical energy and fuels use data indicate that
Cummins achieved an absolute GHG emissions
reduction of 2.3 percent in 2005 versus the year
2000. This equates to a 28 percent overall and a 20
percent, inflation adjusted, GHG intensity reduction
expressed in tons of CO 2e (equivalents) per million
dollars in net sales.
This significant emissions reduction has been
accomplished through increases in efficiency in
part associated with environmental improvement
projects at Cummins that employ Six Sigma tools
and methodology. Similarly, fuel-use reductions
tied to engine-testing efficiencies initiatives, which
themselves yield substantial environmental benefits,
represent supplemental benefits from what is
primarily a quality assurance tool.
Fuels, electricity use and other sources and their
resultant emissions, in general, have increased
from 2005 to 2006. Total direct and indirect
US emissions increased by 5.1% over the same
timeframe, whereas total non-US emissions
increased by 5.5%. Total worldwide emissions in
absolute terms increased by 5.2%. The company
experienced sales growth of 14.5% from 2005 to
2006, yielding an 8% GHG intensity reduction. The
GHG intensity reduction based on inflation adjusted
2006 sales in 2005 constant dollars was 4.8%.
Environment
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