Some background info:
The Rancho La Brea Tar Pits â€“ “One of the world’s most famous fossil localities, recognized for having the largest and most diverse assemblage of extinct Ice Age plants and animals in the world.”
Alberta Tar Sands â€“ A destructive fossil fuel exploration project, that will produce dirty oil, toxic waste and huge CO2 emissions.
Keystone XL Pipeline â€“ “Pipeline that would trek close to 2,000 miles from Alberta, Canada to the Gulf Coast of Texas. If constructed, the pipeline will carry one of the worldâ€™s dirtiest fuels: tar sands oil.”
Barack Obama â€“ The President of the United States.
Stephen Harper â€“ The Prime Minister of the Canada.