From the Global Commons Cohort, we have learned a lot and it is important parts of my two years of undergraduate experience so far. What I learn most is the discussion on environment protection from various country. For the case of Canada, the new policy like making Canadian building sector become more efficient, however, whatever the modal codes for existing and new buildings to improve energy efficiency, or phasing out fluorocarbons used in refrigerators and air conditioning systems, you need to persuade company why they need to change today’s situation and just lose their profits, that…