Rubber, read article that says 1 billion tires are scrapped worldwide annually and that each tire loses 6 lbs on average. Here’s some recycling info https://www.thespruce.com/tire-recyc...rubber-1708979 . Also, where do condoms go to die? A lot of rubber, I imagine a big carbon footprint.
Hard to find a real good answer to my question. Just where does all that rubber go?