The article examines how UK businesses responded to emissions trading from 2002 to 2004 to reduce greenhouse gases. It explores why companies joined in emissions trading and how it influenced their finances. Examining case studies, the research found that participating companies made money and saved costs through emissions trading. The study suggests that as the EU Emissions Trading Scheme and the Kyoto Protocol came into play in 2005, emissions trading would become more important. It indicates a need for further investigation into energy and carbon expenses and how they might impact where facilities are located.