This document investigates the concept of Carbon Capture and Storage (CCS) and its relationship with other parts of the energy system in the United States. It discusses the components of a CCS system, the current state of CCS technology, and the impact of CCS on the energy system and other fuels. The document provides insights into the capture, transport, injection, and monitoring of CO2 in CCS systems. It also explores the potential benefits and trade-offs of CCS in terms of air pollution. The study emphasizes the importance of understanding the costs and potential impact of CCS in the context of climate change mitigation. The document concludes with a discussion on the role of CCS in achieving long-term greenhouse gas reduction targets and the need for further development and implementation of CCS technology.