mold growth on carpet backing 2

https://thoughtminty.com/s/lXD_c1sAWNQAudzQMj1gK

The carpet backing has developed a damp, musty smell and you can see patches of fuzzy gray and green mold creeping along the edges. It's likely from moisture trapped underneath, and if you don't address it soon, the spores could spread to the padding and subfloor.