Answer: deciding how to reduce the effects of pollution.
Explanation: Pollution is an economic problem associated with economic decisions which leads to external effects on everyone. For example, if you produce power from coal, Vehicles, factories. the pollution from this places affects people all over the world. This pollution causes (acid rain, global warming). Pollution is responsible for the death of 7 million people yearly, health effects
associated with pollution include, stroke, lung cancer and heart disease are due to air pollution. Pollution is a global threat.