What are some ways that countries can reduce their carbon emissions?

Question

What are some ways that countries can reduce their carbon emissions?

Answer 1

Mass extermination of the citizenry is the most effective solution.  

Answer 2

By using "non-polluting" methods of generating power such as solar, wind, and nuke. This would allow them to stop using fossil fuels for power generation.

Another thing is to develop real alternative and cleaner fuels for automobiles and transportation. That work is still in its infancy.