Are there any environmentally friendly carpets out there?

Need to replace my stinky living room carpet, ruined by pet urine, tried cleaning it and nothing works. Has anyone tried an environmentally friendly carpet? Hardwood floor leads up to the carpet, so I can’t go with bamboo or anything because it’d look weird to have two different woods in the same area. The room is probably 8′x16′.

Gravel, soil, or natural sod would be your best bet.

Eco-Friendly Carpet Cleaning San Jose – Video 3