Genetically engineered chestnut trees
jeudi 20 août 2020 à 02:00Chestnut blight wiped out the American chestnut tree. A genetic engineering project is ready to introduce resistant trees. Should we allow this?
I think the worries that the blight resistance might fail are foolish. Likewise the concern about Phytophthora cinnamomi. If the GE chestnut trees can't survive, we know what will happen — they will die, just as all American chestnut trees died before. That would be a failure but not a disaster.
Could some other worse thing happen? It is not impossible. Perhaps we should do a further experiment of growing a substantial number GE chestnut trees for 20 years in a number of test plots whose other contents are wild, and not allowing the chestnuts' seeds to get loose.
However, the only way to know for certain is to try them. The loss of chestnut trees was damage to the forest, so bringing them back means repairing the damage. We should not be too frightened to try.