Denver, Colorado. Environmentalists rally at the Colorado state capitol to oppose the planned Keystone XL pipeline, which would transport tar sands oil from Canada to the Gulf Coast. Credit: Jim West/Alamy Live News

---

Size: 5760px × 3840px
Location: Denver, Colorado USA
Photo credit: © Jim West / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: african-american, america, bitumen, black, carbon, change, climate, club, colorado, demonstration, denver, dilbit, dioxide, dirty, energy, environment, environmentalist, fossil, fuel, global, horizontal, hydrocarbon, keystone, kxl, oil, petroleum, pipeline, pollution, protest, rally, sands, sierra, states, tar, united, usa, warming, xl