Here’s an important truth bomb to throw into our wedding issue: You and your partner’s special day is likely to generate a ton of trash.

Well, maybe not a ton, but a lot. A single wedding with 100 to 120 guests typically creates between 400 and 600 pounds of waste, according to a Huffington Post article on the subject. Multiply that number by 2.5 million, the estimated number of weddings each year, then throw in all of the CO2 emitted from guests’ car and air travel, and we’ve got some real environmental impacts on our hands—just to say our “I dos.”