The Public Health Act includes provision for "Green burials" where human remains are buried in a biodegradable casket but "composting" has not yet been legalised under these regulations. Human composting happens above ground in a vessel that allows the body to become compost in 30-60 days.
You may be interested in these active petitions
After death care is a very personal preference and the more choices that people have, the better.
Traditional burial and cremation, until recently were the only funerary options. Both are environmentally damaging.
Green burials are another great choice, but still take up valuable land.
Being able to renourish soil or a tree with the compost of a loved one is the ultimate option in returning from where we all came.