16. The following actions could help to improve energy usage in an organisation: (Please tick the correct answers) 1. Use energy-efficient building materials for future projects, e.g. double glazing, better insulation, and natural sources for heating, cooling, lighting and airflow. 2. Encourage carpooling, public transport and riding or walking to work. 3. Increase ambient temperature in winter and decrease in summer, e.g. set air conditioning to 18°C instead of 22°C in summer. 4. Extend maintenance intervals. 5. Choose energy-efficient vehicles. 6. Establish a carbon offset program for travel or other activities.​