Conducting an Agricultural Life Cycle Assessment: Challenges and Perspectives

Table 4

Selected environmental impacts associated with agriculture.

Environmental impacts	Potential sources
Global warming	Fuel combustion, livestock, nutrient volatilization
Eutrophication	Nutrient leachate, ammonia deposition, nutrient manufacture
Acidification	Livestock waste, intensive crop management
Smog	Fuel combustion, ammonia volatilization, equipment manufacture
Biodiversity loss	Land use change, agro-chemical usage
Fossil fuel depletion	Fuel combustion, material inputs, equipment manufacture
Human health	Agro-chemical usage, fuel combustion, ammonia volatilization, overall pollution, GMOs