The Keystone Pipeline System is a network of pipelines that transport crude oil from Canada to various locations in the United States. It consists of several segments, including the original Keystone Pipeline, which began operations in 2010, and the Keystone XL extension, which was proposed to enhance capacity and efficiency. The system is designed to facilitate the movement of oil from the Alberta oil sands to refineries in the U.S. Midwest and Gulf Coast. The pipeline has been a subject of significant debate due to environmental concerns and its impact on climate change. Supporters argue that it promotes energy independence and economic growth, while opponents highlight risks such as oil spills and greenhouse gas emissions. The discussions surrounding the Keystone Pipeline System reflect broader issues related to energy policy and environmental protection.