Animal Agriculture Problems

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INTRODUCTION
The increase in population causing higher demand in agricultural commodities for both crop and animal. The increase in population is also associated with the environmental problem currently occurred (Aneja et al., 2006). Due to higher demand in both crop and animal product, farmers throughout the world have sought the problem by increasing productivity.
However, due to the fact that the demand need to reach satisfactory, another main problem in animal agricultural industry is unmanaged waste. Waste from animal agricultural industry mainly the manure are very hard to utilised because the amount of manure is too much to handle since the amount of animal itself is quite high. Larger animal produces more manure. Therefore, the amount
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Intensive production system are lacking of environmental stimuli, sufficient space and other that they expose to their natural behaviour. Animals reared intensively produce more droppings than can be utilized as fertilizer in the cropland (FAO, 2005b), thus it is scattered to local landmass causing soil build up and runoff of pollutants (Thorne, 2007). Intensive animal production system will only aggravate the environmental problem caused by animal agricultural sector, whereby FAO has considered as one of the main contributors to climate change or global warming (Steinfeld et al., 2006).
The nature of carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and other gases of trapping heat was demonstrated in the middle of 19th century whereby a physicist named John Tyndall discover the Earth’s natural greenhouse effect and suggested that a little change in the composition of atmosphere may bring to varsity of the climate. A Swedish scientist, Svante Arrhenius envision that the level of CO2 changes in the atmosphere significantly transform the temperature of the surface through greenhouse
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The conflicts in Darfur and other area of Sudan sparked by the abasement of environment. The abasement of environment has been quoted as a spark for ongoing conflict in Darfur (UNEP, 2007), where indefensible conditions are affected by the changes in climate. Farmers and herders are battling to get and to control depleting cultivable land as Earth’s temperature increases and the supply of water dries up (Baldauf, 2006). Aside from that, it is noted that other changes caused by global warming for instance drought, typhoon may become a main factor of war and conflict (United Nations, 2007). According to IPCC (2007a), some countries may experience shortage of food supply and may experience scarce in water supply. Climate-change-related food scarce may be suffered by millions of people in Asia (Casey, 2007). The increase in global temperature may also accelerate the emerging and remerging of infectious disease (Epstein and Mills,

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