Huge tree blocking pathway

The land next to my property as marked is not Stockport council land, nor mosscares. I have spoken to the city of Manchester council, tree surgeons and land registry regarding this. I have to put in a report to land registry but the lady has informed me that it's a long winded process. Children walk to school this way and it's a hazard. I don't know what else I can do. I have paid for land registry records but I am still non the wiser. Surely I shouldn't have to pay to make this safe myself as it isn't actually my property. But I am worried about it being a danger to the public. There is a lot of other much bigger trees in this land which could be blown over with the storm too.