We are so glad to see your concern for the planet! Our bottles are upcycled and hold minimal value. Instead of returning them to us (which would consume extra resources, time, and energy), we encourage you to responsibly recycle them locally. The best way is to hand them over to your nearby scrap collector, who will ensure they are sorted, processed, and recycled correctly. This reduces waste, supports recycling efforts, and also helps provide livelihoods to waste pickers. Returning the bottles to us would create unnecessary carbon emissions and likely cost more than the bottles' actual worth. So, recycling them in your area is the most sustainable choice.