In this blog post, we’ll explore the history of genetic engineering and GMOs, their advantages and limitations, safety controversies, and the extent to which we can control their impact.
Warnings About Genetic Engineering
The film ‘Planet of the Apes’ has been remade several times; based on a novel, it was first adapted into a movie in 1968, and sequels and reboots have been produced steadily ever since. In particular, the latest series—including ‘Rise of the Planet of the Apes’, released in 2011—centers on the story of apes whose intelligence has been enhanced through human genetic engineering experiments, ultimately posing a threat to human society. Although the temporal and spatial settings differ from film to film, they all share a common warning about the dangers that can arise from human arrogance and unchecked biotechnology.
The reason we feel uneasy about the ‘Planet of the Apes’ narrative is likely due to the perception that humans are the beings with the highest intellectual capacity. Held within this belief, it is easy to assume that animals and nature must remain under human control and domination. Consequently, the sight of apes escaping human control and threatening humanity instills a deep sense of anxiety. Of course, the films are fiction, but the fact that unexpected consequences can arise from manipulating living organisms for human benefit is an issue well worth considering in the real world. Today, biotechnology is advancing rapidly, and we need to continuously evaluate and carefully manage how these technologies will impact society and the environment.
Advances in Genetic Engineering
The origins of genetic engineering date back to the mid-20th century. In 1953, the discovery of the double helix structure of DNA marked a groundbreaking turning point in the life sciences. Subsequently, in the 1970s, recombinant DNA technology was developed, making it possible to cut out specific genes or combine them with genes from other organisms. Initially used only in laboratories, its applications rapidly expanded into various fields, including medicine and agriculture.
Recently, with the emergence of gene-editing technology (CRISPR-Cas9) in addition to existing recombinant DNA technology, it has become possible to edit specific genes with greater precision. Consequently, new possibilities are opening up not only in disease treatment research and new drug development but also in the agricultural sector.
Genetic engineering technology is primarily utilized in two major fields. One is the medical field for disease treatment and prevention, and the other is the agricultural and industrial sectors utilizing GMOs (genetically modified organisms).
Genetic engineering for disease treatment and prevention is widely used in the mass production of insulin for diabetes treatment, the production of blood clotting factors used to treat hemophilia, and the development of various vaccines and biopharmaceuticals. Recently, gene therapies for certain hereditary diseases have begun to be used in actual clinical practice, and gene-based treatment technologies for cancer are also being actively researched. Since these technologies are developed under strict safety verification and regulation, they are making a significant contribution to improving human health.
On the other hand, GMOs continue to generate significant social controversy. GMOs refer to organisms in which genes have been artificially inserted or modified to confer specific traits. Representative examples include pest-resistant corn, herbicide-tolerant soybeans, and cotton and canola developed to be resistant to pests and diseases. Recently, some countries have also been developing varieties with enhanced nutritional content or drought resistance. However, various studies and discussions are still ongoing regarding their potential impact on the environment and ecosystems, the possibility of gene spread, the reduction of biodiversity, and long-term safety.
So why are GMOs used so widely? GMOs offer advantages such as resistance to pests and diseases, high productivity, and the ability to increase cultivation efficiency. Some varieties also improve storage life and distribution efficiency. Because of these characteristics, they are regarded as a technological alternative for expanding food production and improving agricultural productivity.
The Myth of GMOs
However, there are also various counterarguments regarding the benefits of GMOs. The global hunger problem is not caused simply by a lack of food production but by complex factors such as economic inequality, war, political instability, and uneven food distribution. There are numerous analyses suggesting that current global food production is sufficient to feed the world’s population, and many argue that solving the problem of hunger requires not only increased production but also improvements in distribution systems.
Furthermore, the expectation that GMOs would significantly reduce pesticide use has yielded mixed results in reality. In fact, reports indicate that in some regions, the emergence of herbicide-resistant weeds and pesticide-resistant pests has led to changes in pesticide application methods or even a resurgence in pesticide use. On the other hand, reduced pesticide use has been confirmed for certain crop varieties. In other words, the effects of GMOs vary depending on the crop type and growing conditions, making it difficult to evaluate them solely based on their advantages or disadvantages.
Risks of GMOs
The biggest controversies surrounding GMOs are safety and environmental impact. First, international organizations and major scientific institutions have assessed that, to date, no conclusive scientific evidence has been found to suggest that approved GMO foods pose a greater health risk than conventional foods. However, they also note that ongoing research and monitoring are necessary regarding long-term effects. While some past studies have claimed that genetically modified foods pose risks, criticism regarding research methods and reproducibility has been raised, and there are cases that are not currently accepted as sufficient evidence by the scientific community.
Second, the possibility of genetically modified crops spreading into natural ecosystems remains a significant management concern. Since there is a possibility that genes could be transferred to neighboring crops or wild plants through pollen dispersal, countries are implementing measures to manage cultivation areas and conduct environmental impact assessments. These issues are being managed through country-specific regulations and ongoing monitoring.
Third, the potential for a decline in biodiversity is also a subject of ongoing discussion. Concerns have been raised that large-scale cultivation of specific varieties could lead to a reduction in genetic diversity and, in the long term, affect the balance of ecosystems. While some experiments have suggested that specific genetic traits may influence survival competition within populations, ongoing research is being conducted because various environmental factors interact in real-world natural settings.
As such, GMOs are a technology that offers many benefits to humanity but also presents challenges that must be addressed. Therefore, rather than categorically labeling them as either unconditionally dangerous or absolutely safe, a balanced approach is needed that considers both the benefits and risks based on scientific evidence.
Conclusion
For this reason, we need rigorous regulation and ongoing research on GMOs. The government must continuously verify the safety assessments and environmental impacts of GMOs and operate a labeling system that allows consumers to easily access relevant information. Furthermore, consumers must have the right to make their own choices based on sufficient information.
Genetic engineering technology will continue to play an increasingly important role in the fields of medicine, agriculture, and the environment. What matters is not unconditionally supporting or opposing the technology itself, but rather ensuring its safe use through scientific verification, transparent management, and social consensus. Only then can we maximize the benefits that genetic engineering technology offers to humanity and minimize unforeseen risks.
