On a recent walk Nathan spotted some N2O cannisters discarded in the bushes along with the usual rubbish found in his area. Today he knew he'd be walking past the same place and came armed with a bin bag just in case they were still there. They were, and along with the cannisters went in cans and bottles to fill yet another bag of rubbish.

GG Cardiff has collected almost 50 bags of rubbish off the streets of Cardiff since the turn of the new year