...is there such a thing?

And if so what's available other than Green Oil? I currently use a dry lube and Green Oil is a wet lube so is less than ideal, so are there any other biodegradable lubes I can use?

I've heard of a chain lube that when applied to a clean chain, the chain never needs to be cleaned again, just the lube re-applied. Does anyone know what that lube is called?