Genetically Engineered Trees

Through Genetics, Tapping a Tree’s Potential as a Source of Energy
By Andrew Pollack
New York Times: Published November 20, 2007

"It might be true that “only God can make a tree,” as the poet Joyce Kilmer wrote. But genetic engineers can fundamentally redesign them.

Aiming to turn trees into new energy sources, scientists are using a controversial genetic engineering process to change the composition of the wood. A major goal is to reduce the amount of lignin, a chemical compound that interferes with efforts to turn the tree’s cellulose into biofuels like ethanol."

Pros:

• possible source for energy
• the trees also absorb carbon dioxide
• trees can be harvested as needed (versus other crops)
• could save at least 10 cents/gallon in ethanol costs
• increased interest and money for tree research
• domesticating trees would save natural forests from being cut down

Cons:

• decreased lignin may lead to weak trees vulnerable to pests and diseases
• the public may resist the attempt to turn trees into a row crop on the same level as corn or soybeans
• Forests are more visually appealing and better for wildlife than tree plantations
• transgenic trees could easily spread to the wild
• long term nature of trees makes it impossible to see the long term consequences