Attempts to build the the Keystone XL pipeline from Canada's oil sands to the U.S. Gulf Coast have been abandoned after more than a decade of opposition from environmentalists, dropping oil prices, and the Biden administration's drive to decarbonize the U.S. economy. Samantha Gross explains the implications of Keystone's cancelation for other pipeline projects, U.S. emissions, and the future of fossil fuel infrastructure.  Show notes and transcript: https://brook.gs/3gqjD1n  Follow Brookings podcasts on Apple or Google podcasts, or on Spotify. Send feedback email to BCP@Brookings.edu, and follow us and tweet us at @policypodcasts on Twitter. The Current is part of the Brookings Podcast Network.