Yes, pets can have both positive and negative impacts on the environment. Some ways in which pets can be harmful to the environment include their waste contributing to water pollution, their food production leading to deforestation and greenhouse gas emissions, and the wildlife that can be affected by pets hunting or disrupting ecosystems. It's important to be mindful of these potential impacts and take steps to minimize them, such as picking up after your pet, choosing environmentally friendly pet products, and keeping cats indoors to protect wildlife.