The environmental impact of real Christmas trees can vary, depending on how the trees are grown and how they are disposed of. If Christmas trees are grown in a sustainable and responsible manner, with careful management of resources like water and land, and if they are recycled or composted after use, they can be a renewable and eco-friendly option for the holiday season. However, some real Christmas trees may be grown in ways that are not environmentally responsible, or they may be discarded in a way that leads to pollution or waste. It's important to research the source of your Christmas tree and how it will be disposed of before making a decision.