Summary:
http://www.who.int/topics/air_pollution/en/

Post 6  Source 5

Air pollution is contamination of the indoor or outdoor environment by any chemical, physical or biological agent that changes the natural characteristics of the atmosphere. Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution.  In some third world countries, it is not uncommon for dung to be used as a indoor heating source and it is also used as fuel for cooking.  Outdoor and indoor air pollution cause respiratory and other diseases, which can be fatal.  The health problems can include pneumonia, chronic obstructive pulmonary disease, lung cancer.  There is evidence that links air pollution to low birth weight, TB, heart disease and other forms of cancer.

Evaluation: 

In developed countries, regulations have been put in place to curved the amount of pollutants that enter of air.  But, is it to late?  In undeveloped countries (third world) many people uses resources that is readily available to them such as dung to help provide heat and cooking fuel for their homes.  They do not have the luxury of in-home heating, electricity or water as do the people that lived in developed countries.  Many of the governments in the third world are poor and therefore cannot provide their citizens with the essentials that developed nations have.

The United Nations and other international organizations have looked into educating the officials and their citizens in other forms of heat and cooking fuel.  But, many of these people cannot afford the financial cost that will allow them these alternatives.  At the time of this writing the United States have an unemployment rate of 10%, unemployment rate in third world countries are as high as 35%.  Their nations do not have programs in placed such as food stamps or unemployment.  These families must used the only resources that are available to them in order to provide for their families, even if it causes pollution.

We can do more in developed nations to ease the strain on our atmosphere, but until a solution can be found to ease the burden imposed on poorer nations, what alternatives do they have?