Scientists and environmentalists today condemned a recent press
release by researchers at the University of British Columbia announcing
they have created genetically engineered (GE) poplar trees for paper and
biofuel production, opening the prospect of growing these GE trees like
an agricultural crop in the future. [1]
The poplars were genetically engineered for altered lignin
composition to supposedly make them easier to process into paper and
biofuels. Groups, however, warn that manipulation of lignin, and the
potential contamination of wild poplars with the GE trait, could be
extremely dangerous. [2]
Lignin is a key structural component of plant cell walls and a major
component of soils. [3] It is also the product of millions of years of
natural selection favoring sturdy, healthy and resilient plants.
Contamination from GE poplars with altered lignin could have devastating
effects on forests, ecosystems, human communities and biodiversity.
Poplars include at least 30 species, are widespread throughout the
Northern Hemisphere [4] and have a high potential for genetic dispersal.
[5]
“Because poplar trees generate so much pollen and seed that can
travel so far, poplars genetically engineered for paper or biofuels are
likely to inevitably and irreversibly contaminate native forests,”
stated Anne Petermann, Executive Director of Global Justice Ecology
Project. “The only way to prevent this potential ecological disaster is
to stop the release of GE trees.”
Martha Crouch, PhD, a plant biologist consulting for the Center for
Food Safety is likewise concerned. “The reports that genetic engineers
have restructured poplar wood to make it easier to process into biofuels
makes it sound as if this technology is right around the corner.
However, no ecological studies have been done yet, and methods for
keeping genes from escaping into forests are unproven and likely to
fail. All of this hype distracts us from truly sustainable solutions
that work safely with what nature has already provided,” she concluded.
Commercial and industrial scale biofuels and bioenergy are creating
vast new demands for wood, and driving the conversion of climate
stabilizing forests and other natural ecosystems to fuel crops.
Rainforests in Indonesia are being burned to make way for plantations of
oil palm, for example. Genetically engineering trees to be easier to
manufacture into bioenergy will further contribute to the problem by
increasing economic pressure to convert land into GE tree plantations.
Rachel Smolker, PhD, Co-Director of Biofuelwatch adds, “The whole
idea of engineering trees for biofuels is outrageous. There is no
question that we must end our fossil fuel addiction, but pretending we
can simply substitute living plants is horribly misguided. Even the tiny
fraction of fuel currently produced from industrial bioenergy has had
huge impacts on forests, water, human rights and food security. Forests
purify water and regulate the climate. They are home to most of the
world’s biodiversity and many Indigenous Peoples. We need to protect and
restore forests while drastically reducing overconsumption. Engineering
trees is moving in exactly the wrong direction.”
From here with footnote links
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