What is the best sustainability plan for arzaville’s energy?

What is the best sustainability plan for Arzaville’s energy?
Theme of our week is sustaining climate and atmosphere which means addressing climate change as well as reducing air pollutants. So for variety, try to explore sustainability in energy conservation and efficiency (using less energy with the same output) as well as greenhouse gas reduction, in all sectors including energy production, transportation, industry, buildings (commercial as well as residential), agriculture, residential. You can also explore reducing air pollution from different sources such as industry, agriculture, etc.
City of Arzaville
Population: 892,062
Population Growth: +6.8%
Elevation 16 ft. above sea level
Avg. Low Temp (Jan.): 44oF
Avg.
High Temp (July): 91oF
Annual Rainfall: 50 in.
Annual Snowfall: 0 in.
Sunny Days Per Year: 221
Drinking Water Source: groundwater
Urban Area: 875 sq. mi.
Main Power Source: natural gas
Average Commute: 25 minutes
% Taking Mass Transit: 2.0%
Top Occupations:
health care (13.5%)
retail trade (12.4%)
finance and insurance (9.6%)
PLEASE NO PLAGARISM