Britannica
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- Genetically modified organisms (GMOs) - Con 3: GMO crops can harm the environment through the increased use of toxic herbicides and pesticides.
- genetically modified organism: Top Questions
- Genetically modified organisms (GMOs) - Con 2: Tinkering with the genetic makeup of plants can result in changes to the food supply that introduce toxins or trigger allergic reactions.
- Plant breeding - Mating systems
What environmental concerns are associated with the release of genetically modified crops?
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genetic engineering
The generation of vaccines relies heavily on techniques in genetic engineering.
The release of genetically modified (GM) crops presents several environmental concerns, primarily centered on biodiversity and the use of agricultural chemicals.
- Increased Chemical Use: Many GM crops are engineered for herbicide resistance, which has led to a significant increase in the use of herbicides like glyphosate. This practice has contributed to the development of herbicide-resistant "super-weeds," prompting even greater chemical application.1
- Impact on Biodiversity: The liberal use of herbicides eliminates diverse plant life in and around fields, reducing essential habitats and food sources for pollinators and other beneficial insects. Furthermore, there are concerns that GM crops may cause inadvertent losses in biodiversity and that engineered genes could potentially escape into wild populations.12
- Wildlife and Ecosystem Health: The use of herbicides near water sources can negatively impact local wildlife, including increasing mortality rates among amphibians. Additionally, scientists have linked the decline of certain species, such as the monarch butterfly, to the widespread use of herbicides associated with GM crops.1
- Pest Adaptation: Insects can evolve to resist the pesticides built into GM crops, as seen with the cotton bollworm, which developed resistance to GM cotton.1