For
It could speed up reforestation and carbon capture.
Against
Altering nature could have unpredictable long-term effects.
Anonymous excerpts, translated where noted.
“we begin to introduce genetically modified trees into the forests that are designed for greater drought and pest-resistance”
“Other genetic-modifications may increase the expression of stress-responsive genes in trees or enhance root-growth.”
“They may crossbreed with wild relatives, leading to the spread of genetically-modified traits in natural ecosystem”
“There's a risk of unintended consequences that may not be apparent until years or even decades later.”