Gloria Ho
Professor Breech
English 120 L13
18 December 2014
GMOs: a Potential Solution to All Environmental and Health Concerns
Over the past decade the United States have been weighing the pros and cons of Genetically Modified Organisms (GMOs). Genetic Modification is the transfer of genes between distantly related or completely unrelated species such as the insertion of animal DNA into the genetic code of a plant species. This is different from traditional/cross breeding which involves taking the best genes of like species to produces plants or animals with the optimum traits for a specific species. Genetic modifications on plants have been practiced for around a millenia and recently on animals and even disease organisms. The aim of GMOs are to make enhanced crops that are able to improve our health, such as foods that contain cancer-fighting chemicals and are allergen free. While there has not been any proof that genetically modified foods negatively impact human health, many argue against GMOs because of the lack of scientific knowledge on its long term effects on human and environmental health, along with the negative connotation of gene manipulation. However, as modern society is in a technological age where such biotechnology is available to improve and increase the nation’s or even global resources (which is capable of solving issues such as world hunger), why not make use of such means instead of denying all its possible benefits.The potentials of genetic modification and transgenic organisms outweighs the possible risks.
Since the commercialization and practice of genetically modified crops in 1996, studies have shown that greenhouse gases emitted into the atmosphere has decreased compared to the farming of traditional crops. Greenhouse gases are the primary reason for global warming as they trap in radiation from the sun causing the warming of the planet and with increased concentration of greenhouse gases, warming increases. Global warming is a major issue that creates a chain effect of problems in the environment. With the warming of the planet sea level rises due to the melting of glaciers and this causes extreme temperature and weather changes everywhere around the world. These changes endanger many species of both animals and plants that cannot adapt to such environmental alterations. Agriculture plays a role in the worsening of global warming because of the many greenhouse gasses that are emitted from the spraying of pesticides, insecticides, and herbicides. In a study that started from 1996-2004 researchers have found that genetically modified crops grown around the world that contain the pest resistant gene “has reduced pesticide spraying by 172 million kg and has reduced the environmental footprint associated with pesticide use by fourteen percent” (Brookes et al.). This is “equivalent to removing five million cars from the roads” (Brookes et al.). Considering how the current state of the environment will only continue to worsen as time progresses these pest resistant crops can be a way to delay the advancement of global warming not to mention emitting less pollution into the air especially if all transgenic crops had this pest resistant gene. This illustrates how GMOs have the potential to improve if not maintain the health of the environment.
In addition to improving the environment the practice of growing transgenic crops can greatly improve the human health with the reduced usage of pesticides. Pesticides have been used for decades and while they have been beneficial in terms of increasing food production the negative side effects of pesticides are of great concern. While the ingredients of pesticides are thoroughly tested in order to be approved by the EPA (Environmental Protection Agency) and are legally required to label their ingredients before commercial distribution this does not mean that the ingredients are non-toxic and safe considering how they are made to kill. When pesticides are sprayed it almost never just reaches the intended crops. Wind, the primary transportation method of pesticides can be blown in rivers and other farms (Hicks). Pesticides are also absorbed into the plants, soil, and other organisms and the remainder is carried by water that runs through the soil (Hicks). Asides from obvious human exposure to pesticides (consumption), pesticides are inhaled and absorbed into the skin which heavily impacts the health of farmers who do not have proper equipment that protects them from pesticide exposure. In the U.S alone there are around sixty seven thousand cases of pesticide poisoning a year and many more unreported (Pimental et al.). Some side effects of pesticide poisoning includes nerve damage, liver disease, asthma, lead to blood, depression, and abdominal pain (Hicks). This goes to show how large of a difference transgenic crops can bring to both producers and consumers. With pest resistant crops the health and lives of people who are at risk of pesticide poisoning can greatly decrease and would only continue decreasing with the increase production of these transgenic crops. Furthermore, in comparison to the damage pesticides cause including the whole range of water, land, and air pollution and the potential to directly deteriorate our health, genetically modified crops, which have not shown negative effects to either human or environmental health is actually a source that is capable of improving both aspects of society that are in great need of improvement.
Genetically modified crops can create a reliable food source for the growth of the human population. For around a decade there has been a steady 3.4 billion acres of farmland worldwide and for the last decade the human population has been in a delicate balance between the amount of farmland and the amount of people in the world which results to about double (now it is slightly more) the amount (Moon et al.). From 2004-2006 the world’s population was nearly exactly 6.8 billion which is double the amount of arable land. However, at 2012 and (now) 2014 the human population has reach around 7.3 billion and will only continue increasing (Moon et al.). It has been predicted that the human population would reach to 8 billion by 2020 (Moon et al.) and with a large possibility that the acres of arable land will remain as it is due to limited space, there has been a growing concern of whether or not the world has enough resources to feed the forever growing human population. To add on to such concerns is the issue of global warming which also continues to worsen has increased the difficulty of growing certain crops due to climate change. Genetically modified crops may be a solution if/when such a problem arrives. In 1992 (before GM crops were officially introduced commercially) scientists were able to create drought resistant corn (Pastori at al.) and in 2000 drought resistant potato plants were genetically modified (ET et al.). While there are many more issues aside from drought global warming clearly does not simply heat up the earth but causes other extreme climates, majority of crops are lost to droughts. In case of such extreme conditions genetic modification has created a reliable food source even if it is only potatoes and corn to counteract in such situation.
Furthermore, aside from losing crops to climate change there is also the growing issue of invasive species that bring diseases to crops. One case is the Florida orange which has been infected by a disease brought by an invasive species in 2005 and eighty percent of the state’s citrus trees have been declining since (Voosen). However with the use of biotechnology there are now genetically modified versions of the trees that contain genes from spinach and successfully fights off the disease (Voosen). It is also unlikely that orange trees can continue to grow in Florida unless they are all genetically modified. There has also been early forms of genetically modified diseases in the early 1990’s researchers were able to create papaya plants that were resistant to a disease called ringspot virus which prevented the plants from producing any crops (Voosen). Researchers created this papaya by inserting bits of the “virus’s DNA into the plant’s genetic code” (Voosen). In both these cases genetic modification proves to be necessary in saving and strengthening plant species from uncontrollable diseases that can potentially wipe out an entire food source in one state. With the increase of environmental concerns, the need for crops that grow quicker, larger, and stronger are crucial for future generations.
Animal transmitted diseases has been an issue that has been impacting human health throughout modern, historic and prehistoric times and has been largely out of our control however genetically modified animals shows potential to eliminate these diseases. In one recent study a group of researchers brought up the idea of genetically modified mosquitoes (GMMs) “for the control of malaria and other mosquito-borne diseases has been proposed in malaria-endemic countries, such as Nigeria, which has the largest burden in Africa” (Okorie et al.). They surveyed 164 scientists in Nigeria to ask for their opinion on the possibility of releasing genetically modified mosquitoes throughout Africa (Okorie et al.). Many encouraged the study of using transgenic techniques to stop mosquitoes from spreading diseases however there was also a large concern over controlling the population of GM mosquitoes and the “unknown consequences” of GMMs mating with other mosquitoes (Okorie et al.). While there are many factors to consider, the very fact that genetic modification is capable of creating mosquitoes that don’t carry diseases, which actually lead to thousands of deaths each year, can improve the quality of life in areas such as Nigeria where there is always a high chance of catching the disease. This also opens up a gateway of possibilities for other organisms that carry diseases such as ticks and lyme disease, wild birds and influenza, mammals and rabies. Genetically modification has the capability of controlling things that couldn’t have been controlled before and in this case it could mean a future free of animal transmitted diseases.
Genetically modified animals not only show promise in securing human health but a food source that is reliable and could improve the environment. One would be genetically modified fish which has the power to become a food source in place of the depleting population of fish due to overfishing all over the world. Many transgenic fish today are not designed to be eaten and are either sold to be displayed in aquariums or in laboratories for testing. While this may seem to reap little benefits genetically modified fish can lay a huge role in improving human health for the are “used in many laboratories all over the world as models for understanding the mechanisms of growth and development, and disease resistance, or for studying human diseases” (Muir). If that isn’t enough there is always the possibility of consumable genetically modified fish in the future. While this is far from happening as there are many risks similar to those of GMMs, the potentials to genetically modified fish are great. Transgenic fish can not only grow thirty five times faster but grow larger, have better resistance to diseases, provide more nutrients and have a higher tolerance to the cold (Muir). By having fish with disease resistance less insecticide, fungicide, and antibiotics would be used, lowering the amount of pollution which also lowers costs for farmers (Muir). Additionally, if GM farmed fish are monitored strictly and wasn’t able to escape, native species of fish, the biodiversity, and aquaculture would have a chance to improve now that humans have a difference source to fish. It would become a reliable food source considering how the production of GM fish could be controlled. Transgenic animals are far from reaching their maximum potentials however with the ever advancing biotechnology GM animals can be a solution to countless matters impacting human society.
GMOs are not only limited to crops and animals but also genetically modified diseases. In 2012 there was a case where a six year old girl with leukemia tried an experiment out of desperation where doctors injected her with a genetically modified version of the AIDs virus to kill the cancer cells in her body (Grady). The treatment was successful and was able to go into complete remission six months later (Grady). This case illuminates the possibilities genetic modification can provide for the health industry and patients with deadly diseases or cancer. With further tests and perhaps alterations of other diseases genetically modified versions of diseases can be a treatment that can fight off an unthinkable amount of illness. While this was an extremely risky experiment that almost took the life of the child this was able to open up doors to treating and helping the lives of people with terminal or what was thought of as incurable diseases.
Opponents argue against GMO’s because some studies have shown that genetically modified foods can cause a rise in food allergies. In one case a girl named Caitlin Shetterly “claimed that GMOs caused her allergies” (Lim). After her consulting her allergies with a doctor, who claimed that it may be linked to GM foods, she stopped eating any GMOs and eventually her allergies were gone (Lim). In a study conducted in the UK a year after the country allowed genetically modified soy to be imported by the US, researchers have found that allergic reactions to soy increased about fifty percent compared to the previous year (Smith). While there has been many speculation and support towards this argument for over a decade there still hasn’t been concrete evidence proving the fact that genetically modified foods causes allergies in the human body. In fact, due to the complexity of plants and living organisms and the unreliability of tracking new food allergies of large populations it is impossible to truly prove whether or not GMO’s can cause food allergies. However, there are many reasons to why it is neither likely nor logical for this to be true. For one, genetic engineers are paid to “‘add genes of known structure and function to crops’” (Lim) and “no commercially available crops” would have been purposely genetically engineered to contain allergens (Lim). Not only would there be no reason for scientists to engineer crops for the purpose of giving people allergies (unless the plant/seed already contained properties that had allergens) but the FDA (food and drug administration) would not allow for such hazards to pass into the hands of the public, risking the health of millions of people. Additionally, another reason why it is not likely that allergies are caused by genetically modifying crops is because one of the goals and purposes of GMOs is to remove allergens that are naturally present in certain crops such as tree nuts and soy. Since 2008 there has been news of the possibility of GM hypoallergenic peanuts as scientists have now targeted the proteins that cause fatal allergic reactions in peanuts (Rowe). There is no reason for scientists to work against their goal to purposely harm the health of people in society. Overall, while it is a valid concern there are many more reasons to why GMOs wouldn’t cause new food allergies.
Another argument people make against GMO’s is that growing crops and animals that have been genetically altered in a laboratory is unethical. Many “believe that the laws of nature cannot and should not be violated, that the basic structure of the created order shouldn’t be tampered with” (Schulman). While this is true that manipulating the genes of living organisms to our liking is unethical, there is a greater good that can come out it. As the human population is growing exponentially and tons of food sources are decreasing due to overexploitation. Whether it is harvesting, fishing, or hunting of natural resources it is done at unsustainable levels. This has led to the extinction of thousands of species and the destruction of biodiversities that maintain the function and health of the planet. Genetic modification may not be the best possible answer to the problem of world hunger and the dwindling of the nations resources however it is a safe food source that can grow faster, larger, stronger, and even contain more nutritional value (Ackerman) until there is a better solution. Additionally, if monitored and maintained correctly genetically modified animals such as fish may be a separate meat source that wouldn’t negatively impact the environment (Muir). Also, GMO’s are not only limited to food sources but also GM diseases and virus can inturn help fight off other deadly diseases which is a major breakthrough in terms of the future of the health industry (Grady). Although, many can agree with the questionable ethicality and risks of genetic modification there is also undeniable benefits and potential to it.
Despite the indeterminate long term effects of GMOs its immediate effects have been beneficial to the planet and human society. Genetic modification ranges from all living things such as diseases, animals, and plants and, as discussed, the effects of GMOs has in turn created or in the process of creating a larger impact on all aspects of life on earth. So far GMOs have touched on persisting issues such as our growing population, failing ecosystems, and deadly diseases (for both plants and humans). Yes, there are down sides to genetic modification. The fact that scientists are practically molding all life forms that exist on Earth to benefit the human race is unethical and what damages GMOs can cause to the world a hundred years from now nobody knows. However, the human race, just by simply existing, has negatively impacted the world. The growing population and advancement in technology means more people are occupying the planet for longer which means more destruction to natural land to create more living space, and more industries and factories polluting the habitat to support this growth. It is unrealistic to think that any of this “more” will stop. Thus, from all the ways that technology and “progress” has destroyed the environment and our health, biotechnology used to create GMOs can now improve if not fix the damage that has been made and from there on, hopefully, we can progress as a society that improves the quality of all lives.
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