Essay about Global World Population And Its Effects On The Environment

1026 Words Sep 20th, 2015 null Page
Global world population is expected to hit the 9 billion mark by 2050. Besides the growing population, hunger is another problem that has affected at least 800 million people across the world, mostly females. Both issues can be addressed by increasing food productivity. However, the process of increasing food productivity has not been favorable to the environment for these past years. As a result, a sustainable way needs to be completed to increase food productivity and improve food security while minimizing its negative effects on the environment.

According to J.A. Foley (2015), there are five steps to improve food production in a sustainable way: stop expansion of agriculture land, close the yield gap, efficient use of resources, changing diets, and reduce the food waste. Stopping the expansion of agricultural land is necessary as agriculture takes up approximately 37% of the world’s available land. The remaining lands, such as tropical forests and savannahs, are sources of biodiversity and acts as a carbon ‘sink’ to counter the other negative effects on the environment. Transformation of these areas into agriculture land may lead to loss of biodiversity and increase in carbon dioxide levels that contribute to climate change.

Aside from the limited available land, agriculture land affects the water systems negatively. 70% of the world’s fresh water is used for agriculture, mainly for irrigation. The water systems have also been contaminated by fertilizers and pesticides…

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