Increase indoor temperature range, to connect people to outside and reduce energy. Sweaters! Shorts!
Change commercial (including offices) buildings operating temperature range, to decrease air conditioning in the summer, and decrease heating energy in the winter. My estimates show that a changing the range from 2°C to 8°C could decrease overall building energy by 10%.
While the City cannot mandate the temperature that people set their thermostats to, this issue is addressed through occupant engagement as well as education and capacity building for building operators.