If you’re an occasional camper, can you forgo costly new clothes and gear (and the carbon footprint left by their manufacture)? Instead, try borrowing from outdoorsy friends, renting from outfitters, or shopping for used gear and apparel at sites such as wornwear.com.

Some campgrounds, like some cities, suffer from overtourism. Why choose a destination where your visit compounds that? Skip the popular spots touted on social media; instead, look for sites described as “tucked away,” “spacious,” and “low-key” in travel guides and visitors’ reviews. (The new National Geographic book 50 States, 500 Campgrounds is available at books.disney.com and where books are sold.)

Pack reusable meal supplies, not single-use items: dishes, cutlery, cups, and water