I want to know the answer to the following question:
what countries is the Commission for Environmental Cooperation made up of?
All the background I'm provided with is that "The North American Environmental Atlas, produced by the Commission for Environmental Cooperation, a NAFTA agency composed of the geographical agencies of the Mexican, American, and Canadian governments uses the "Great Plains" as an ecoregion synonymous with predominant prairies and grasslands rather than as physiographic region defined by topography.". Is that enough to answer the question?
Answer: yes