Compared to gene-edited babies in China and ambitious projects to rescue woolly mammoths from extinction, biotech trees might sound pretty tame.
But releasing genetically engineered trees into forests to counter threats to forest health represents a new frontier in biotechnology. Even as the techniques of molecular biology have advanced, humans have not yet released a genetically engineered plant that is intended to spread and persist in an unmanaged environment. Biotech trees – genetically engineered or gene-edited – offer just that possibility.
One thing is clear: The threats facing our forests are many, and the health of these ecosystems is getting worse. A 2012 assessment by the U.S. Forest Service estimated that nearly 7 percent of forests nationwide are in danger of losing at least a quarter of their tree vegetation by 2027. This estimate may not sound too worrisome, but it is 40 percent higher than the previous estimate made just six years earlier.
In 2018, at the request of several U.S. federal agencies and the U.S. Endowment for Forestry and Communities, the National Academies of Sciences, Engineering, and Medicine formed a committee to “examine the potential use of biotechnology to mitigate threats to forest tree health.” Experts, including me, a social scientist focused on emerging biotechnologies, were asked to “identify the ecological, ethical, and social implications of deploying biotechnology in forests, and develop a research agenda to address knowledge gaps.”
Our committee members came from universities, federal agencies and NGOs and represented a range of disciplines: molecular biology, economics, forest ecology, law, tree breeding, ethics, population genetics and sociology. All of these perspectives were important for considering the many aspects and challenges of using biotechnology to improve forest health.
