Population growth and the threat of overpopulation is a very big concern in the world today. Right now, the world is populated at about 6.2 billion with 76 million people being born per year. Over the next fifty years, this immense statistic is expected to double itself. The biggest threats of overpopulation is located in the countries of China, the US, India, Indonesia and Brazil. The two main reasons of overpopulation include the fact that people are living longer than they used to, which is due to the new discoveries of medical technology. The other is that people are having children at an earlier age, which is due to the copious amounts of teen pregnancies and the lack of contraceptives in undeveloped countries. The hazard of

Overall, population growth and the danger of overpopulation is the most seriously global challenge. Overpopulation is the biggest threat because it drastically affects many of the other concerns that are mentioned. For example, the increase of population can lead the concerns of deforestation, due to the struggle to provide a sufficient economy. It can also leave to pollution (greenhouse effect, global warming), poverty and famine, and urbanization. All of these topics are important factors that must be recognized and prevented so that the world can ultimately find a successful way to maintain and eventually abolishes many of these global concerns.

Another rising global challenge that is every nation in the world is facing is nuclear proliferation. The global concern with nuclear war and proliferation is so important because of the amount mass destruction, death and extreme damage that could occur. The only countries that declare themselves nuclear powers have access and obtain these nuclear weapons are the US, China, Russia, France and the United Kingdom. However, even those these are the only ones that possess these weapons of mass destruction, it is still a global concern that faces every nation. Due to the large expansion of the military and the investment in machinery, the amount of nuclear weapons has increased to at least 50,000 nuclear weapons and is steadily increasing over the years. The power of these weapons is equal to one million Hiroshima bombs (H-bombs) that was dropped by the US during World War I to ultimately destroy an entire city. After th

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