What are the best plants to have in the bedroom? The Allure and Risks of Growing Datura in Your Garden TN Nursery A Carbon Capture Project Faces a New Delay in a Year of Slow Progress for Coal Power Plants Looking for Retrofits Inside Climate News Genetically modified (GM) crops may have some harmful effects if not managed properly. . There are also concerns about possible health effects and environmental impact, such as gene transfer to non GM plants.