Ecology homework question 2???

Environmental Science
Tutor: None Selected Time limit: 1 Day

The carrying capacity of the planet depends on how many people are alive, their standard of living, the amount of food we can produce per acre and the number of acres that we convert from natural ecosystems to areas providing food for our species.  Use the internet to research this and briefly describe what has happened to these four things in the last few hundred years and why, citing your sources.

 
Apr 2nd, 2015

On July 1, 1760, the world's population was at 770 million people.  Today, 255 years later, that number has grown to almost 7.4 billion.  Destruction of natural ecosystems and habitats have come at a cost to wildlife and the quality of the human environment.  However, advances in medicine, technology and agriculture have raised the standard of living and what is considered poor quality of living now, is considerably better than what was considered poor quality living 255 years ago.  


Today, aside from food being produced in factories, land on which farmers grow food is increasing as well, as more farming operations, both corporate and private, are purchasing and clearing land to use for the cultivation of crops to feed our growing population. Over the last few hundred years, modifying and destroying natural habitats for agricultural use has become the largest cause for habitat destruction today.  For example, in Europe, over 85% of natural habitat has been destroyed for agricultural purposes.  Urban development, like roads, power lines and pipelines have increased along with deforestation and several types of pollution that have caused the destruction of the world's natural environment as well.  Overall, as population is increasing, naturally, so is food production, however, this is coming at a significant cost to the earth, as much of this damage cannot be repaired.  Eventually, we will run out of space, our natural resources will slowly be depleted and the quality of life, as well as population and food production will go back down.  

http://www.eoearth.org/view/article/153224/

http://siteresources.worldbank.org/INTWDRS/Resources/477365-1327599046334/8394679-1327599874257/Pingali-Global_Agricultural_Performance.pdf


Apr 2nd, 2015

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