Our environment goes through many changes over the decades. These changes are the result of many different things. Greenhouse emissions are a large part of today’s complications. Population growth is warrants the use of more resources, not allowing time for the land and atmosphere to heal properly. History has shown that entire species can lessen or become extinct when the environmental conditions deteriorate. Human habits have a lot to do with the way our planet changes. At times, the planet has had too many stressors, or a humans expose something that can cause large amounts of destruction.
Population checks, where large amounts of human deaths occur, happen from time to time. Humans have found ways to avoid disease, and support larger populations, however. While this seems like a productive solution, the lack of natural population checks is leading to a severe overpopulation of the planet. The results are devastating.
Food production is a major part of human survival. In ancient times, if the earth was overworked, crops would cease to grow. A community may then be without sustenance, or move on to an area with fresh soil. The land they vacated would be left to replenish itself. With humans taking over almost every corner of the earth, there is no time for it to heal. Food production has been altered in many ways to accommodate larger numbers of humans. Genetically modified foods are one of the newest developments, allowing for bigger crops. This increases the yield and can provide more food at a given time. It may be decades before we are met with the consequences of these actions. Scientists have no way of knowing exactly how these modified foods may affect humans and the environment.
When crops are grown, they naturally spread seeds and change the ecosystem. The contributions may be subtle, however. Genetically modified plants introduce an unnatural element into nature. Concerns are high among consumers about the health implications. Plants do evolve, over time, to grow well in their environment. This is much like the theory of natural selection in humans. These changes, however, are not in sync with the environment in any way. They are purely for mass consumption.
Wildlife is a major part of our ecosystem, as well. Predators make up an important part of the balance. The food chain consists of different levels of animals, resulting in delicate performance of nature. When an animal at one stage of the tier disappears, it changes the way many animals eat, reproduce, and where they live. Predators help keep the amount of intrusive species low. Even the possums in your yard have a purpose. They eat things like ticks, preventing overwhelming amounts of them. This also helps to reduce human disease.
Overpopulation in the past would have resulted in the extinction or lessening of a species, perhaps. This would also make population increase difficult, as the food source declined. Humans in a certain area would again move to find a sustainable food source, or die off. This would give a species time to replenish. We are presently killing off many species due to many factors. Overpopulation contributes to the loss of species because of the need to build shelter in areas the animals would normally live, for example. Illegal and recreational hunting have also been a part of wildlife extinction or a reduction in numbers.
The atmosphere is under attack from the many factories run by humans. An increasing population means that more products and energy resources are in demand. Things like electricity, plastics, and water are all needed on a daily basis. Factories rush to keep up with consumers and introduce greenhouse gases into the environment. Vehicles also contribute to the release of these gases.
The atmosphere, in turn, is heating up. The pollution alone is dangerous; however, major climate changes could be in store for the future. Widespread cancer cases, respiratory issues, and allergies may be related to the major changes to the atmosphere. Failure to allow the atmosphere to recuperate may result in an environment that humans can barely breathe in. Deforestation is also removing a pertinent oxygen source from the planet, further causing issues. The release of diseases is common during times of heavy deforestation, as well. We seem to be setting ourselves up for a major population check.
Overpopulation is taking its toll on our planet. Our determination to create things and sustain an ever growing group of humans has left our planet at risk. Pollution reaches far out to sea, and into the depths of once beautiful forested areas. Population checks have decreased with the introduction of medical care and alternate ways to access food. Our planet is in grave danger from climate change, human interaction, and mass usage of utilities. Continuance in this manner may increase poor plant production, cause more animals to go extinct, or bring a mass spread of illness.