Overpopulation is considered to be the result of improved medicine, sanitation and agriculture worldwide. In the early days of human history, the death rate was relatively close to the birth rate, ensuring a very slow population growth. As life spans improved due to advancements in technology, the birth rate began to grow much faster than the death rate, creating a larger surplus of births every year.
The earliest factor that increased the population was the development of agriculture. Planting crops allowed communities to harvest food much more efficiently than hunting and gathering, providing a bulwark against starvation. With an abundance of food, people lived longer, and children were more likely to live to adulthood to reproduce. As technology has improved, the nutrition provided by the food supply has improved, as well, further increasing the lifespan and the reproductive potential of the population.
Modern medicine is another major factor in overpopulation. Major disease outbreaks are less common, and when they do occur, they tend to be much milder than in the past. Medical treatment allows people to survive illnesses that once would have killed them. Improved sanitation and access to clean water are also major factors that allow people to survive longer and reproduce.Learn More
Poaching may create negative side effects to human and animal habitats, the environment and communities. Furthermore, poaching may contribute to regional and even national and international political and legal instability and can increase the numbers of threatened and endangered species worldwide.Full Answer >
According to GlobalResearch.ca, as of 2014, the fact is that climate is always fluctuating, and assuming that climate was stable prior to the Industrial Revolution is wrong. No human influence in the pattern of global temperature was detected, despite spending $50 billion to find it. No computer model is accurate enough to predict the future, and thousands of scientists have signed declarations stating they question the existing evidence.Full Answer >
Reducing personal energy usage is the most effective way to help stop global warming, as the Natural Resources Defense Council explains. The burning of fossil fuels, such as oil and coal, is the biggest cause of global warming, because fossil fuels release carbon dioxide into the air.Full Answer >
Gold mining affects the environment in many negative ways, including the release of large amounts of exhaust from heavy equipment and transport, toxic drainage into nearby waterways and the release of mercury fumes from ore processing. Gold is most commonly mined in open pits dug specifically for that purpose. Even in the richest of mines, the gold content is a tiny fraction of the material dug up.Full Answer >