The Canadian government approved Tuesday the construction of a controversial pipeline that will connect Alberta's vast tar sands to the Pacific coast and growing Asian markets.
The government is requiring the project meet 209 environmental conditions, Natural Resources Minister Greg Rickford said in a statement.
Critics of the pipeline maintained their opposition.
"This project is not going ahead," Green Party Leader Elizabeth May told the Toronto Star. "It will be stopped by British Columbians."
The energy board acknowledged that the pipeline is likely to cause significant adverse environmental effects to certain populations of woodland caribou and grizzly bear, though it noted those effects "are justified in the circumstances."