This document provides information on calculating carbon footprints for businesses and organizations. It discusses the scopes of carbon emissions, including direct (Scope 1), indirect from purchased energy (Scope 2), and other indirect emissions (Scope 3). Examples are given of carbon footprints calculated for an environmental non-profit, a conference, a hotel, and a manufacturing business. Tips are also provided on areas businesses can target to reduce their carbon footprints, such as improving insulation, upgrading heating systems, reducing energy use from electronics and appliances, encouraging telework and ridesharing among employees.