Stakeholder climate change actions worldwide have prompted companies to measure their greenhouse gas emissions and reduce their carbon footprints by decreasing energy and fuel use. In the process, they are cutting costs, decreasing exposure to severe weather, reducing energy vulnerability, and potentially opening up revenue sources for carbon credit sales in the emerging markets for carbon trading. This note is effective in MBA, undergraduate and executive education courses on clean commerce innovation, carbon markets, sustainability, and environmental and regulatory issues. This technical note stands alone and also works as a companion note to "Frito-Lay North America: The Making of a Net-Zero Snack Chip" (UVA-ENT-0112). For instructors, a teaching note is available, along with a supplemental Excel spreadsheet for use in performing carbon emissions calculations.