population growth and climate change

Something that is interesting to me is population growth and how it is affecting our planet. I think it is interesting that we are getting to the point where the earth is over populated and i would like to do more research on it. I don't know exactly what topic in population growth I would like to do but I know its something I'm interested in studying more of. I read a few articles and saw a few growth maps, what interested me the most is a map of the world 2000 years ago. There were only 300 million people on earth and by 1995 it when up to approximately 6 billion Asia holding 61 percent in population. Of course this number has went up and is now affecting our food,water, and shelter.

"Math in Daily Life -- Population Growth." Teacher Professional Development and Teacher Resources by Annenberg Media. Web. 12 Feb. 2010. http://www.learner.org/interactives/dailymath/population.html.

"By 1990, that rate was down to 1.5%, and by the year 2015, it's expected to drop to 1%. Family planning initiatives, an aging population, and the effects of diseases such as AIDS are some of the factors behind this rate decrease." This quote was interseting it says that instead of population increasing as we thought it would it will decrease by the year 2015 due to health and aging. I was glad I was able to find this quote because now I am able to compare and contrast my information. I somewhat believe this data and it does make sense but I also heard that for every person that dies a person is born so regardless if someone dies we would just be replacing them with someone else. So maybe this is not an accurate asumption.

"Human Populations." The Global Change Program at the University of Michigan. Web. 12 Feb. 2010. http://www.globalchange.umich.edu/globalchange2/current/lectures/human_pop/human_pop.html#carrying%20capacity.

This website showed a lot of different graphs and maps of populatation growth and why it is continuing to grow. A part that struck me was fertilty growth. "the current growth of population is driven by fertility." They showed a map of the world what this map shows is the total fertility growth around the world during 1990