might be some truth - depends hopw they do it the carbon footprint from my small garden would be from borders /containers
I recycle kitchen scraps in the worm farm for fertiliser and use clippings to produce mulch - both of these decrease waste from my property and the fresh veg means if you are short of something you go outside for it often instead of to the shops we eat more veg this way than if we bought it all which decreases my footprint too
maybe some education for people about the best way to do it good for mental health too I bvelieve to see and aid things growing - particularly after spending time on HC listening to idiots say it's quite OK for russia to nvade abd annexe Ukraine !
