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The Danger of Releasing Genetically Modified Trees Into the Wild

From Observatory

Genetic engineering, a process that modifies genetic material, is being used to create genetically modified organisms (GMOs). Scientists are genetically engineering trees like the American chestnut to have new traits such as faster growth, insect and disease resistance, herbicide tolerance, and altered wood composition. The release of genetically engineered (GE) trees into the wild may harm the environment, communities, and human health.

If genetically engineered trees are released into the wild, they can contaminate native forests, disrupt ecosystems, and damage communities. Trees disperse their pollen and seeds over long distances through wind, water, insects, and animals, making it difficult to control the spread of genetically modified traits. The fact that trees live for decades or even centuries means that any contamination would be widespread and irreversible. Assessing the risks GE trees pose to forests and communities is challenging due to the complexity of ecosystems and the long-term effects of genetic modifications.

People living near GE tree plantations could face health risks from toxic chemicals, especially if the trees are engineered to tolerate herbicides. Pollen from insect-resistant GE trees could trigger allergies and asthma.

The expansion of industrial tree plantations contributes to deforestation, habitat destruction, and climate change. GE trees with faster growth rates would incentivize further expansion of plantations. Plantations of eucalyptus and pine, known for their flammability, have contributed to deadly firestorms. Fast-growing eucalyptus trees also deplete groundwater and soil, causing water scarcity for Indigenous communities in Chile.

Researchers have genetically engineered an American chestnut tree to tolerate a blight that killed many of these trees in the wild. They are seeking government approval to release these GE trees into the wild, aiming to contaminate wild relatives. If approved, this would be the first-ever release of a GE tree into the wild for this purpose, setting a dangerous precedent. The risks associated with these GE trees, including environmental, social, and health impacts, have not been thoroughly assessed.

Opposition to GE trees comes from organizations representing millions of people worldwide. They argue that GE trees threaten forests, biodiversity, and Indigenous rights. Concerns include the potential for unintended consequences, the lack of long-term risk assessments, and violations of Indigenous sovereignty. The Forest Stewardship Council, a leading forest product certifier, rejected the commercial use of GE trees due to their risks.

The release of genetically engineered trees into the wild poses significant risks to the environment, communities, and human health. The unintended consequences of genetic modifications, the irreversible nature of contamination, and the lack of comprehensive risk assessments highlight the need for caution. The opposition from various organizations and Indigenous communities underscores the global concerns surrounding GE trees. It is crucial to prioritize the protection of forests, biodiversity, and human well-being in the face of emerging biotechnologies.

Read full article "The Danger of Releasing Genetically Modified Trees Into the Wild" by Anne Petermann.

🔭   This summary was human-edited with AI-assist.

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