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Over the next 50 years,the Earth's human population is predicted to increase from the
 

Summary: Over the next 50 years,the Earth's human
population is predicted to increase from the
current 6.1 billion to more than 9 billion,creat-
ing a parallel increase in demand for agricul-
tural commodities.
Satisfying the demand for food is already
driving changes in crop and livestock produc-
tion methods that may have profound envi-
ronmental effects.Increased consumption of
animal protein in developed and developing
countries,for example,has resulted in con-
centrated production of poultry and livestock,
which has led to concentrated emissions of
pollutants from these production facilities and
has created regulatory concerns for agricul-
ture.Development of land for nonagricultural
uses has placed more pressure on marginal
agricultural lands and has caused environ-
mental degradation including the emission of
trace gases (e.g.,carbon,sulfur,and nitrogen

  

Source: Aneja, Viney P. - Department of Marine, Earth and Atmospheric Sciences, North Carolina State University

 

Collections: Environmental Sciences and Ecology; Geosciences