What are some ways each person could reduce air pollution and energy consumption

The right answer is adjust the temperature settings - cooler in winter and hotter in summer.

To save electricity consumption by air conditioners, it is advisable to:

* Do not exceed 8 ° C difference between inside and outside

* Switch off the air conditioning when leaving at night or shift the set point, for example from 25 ° C to 28 ° C (valid for heavy buildings with high inertia)

* When you turn on your air conditioner, there is no need to set the thermostat too low, the room temperature will not drop faster

* Close your windows and doors in an air-conditioned room to avoid overconsumption of energy!

* Clean the filters.

* Insulation saves up to 5 ° C indoor temperature and almost 20% savings on your energy bill

i am going to guess that it is co2.