1 As the winter chill returns to the air residents of UK cities may start to see strange things appearing on their trees. Don’t be alarmed if you spot hot water bottles hanging in a tree – they’re not a strange message or an art installation. A group is tying hot water bottles to tree branches to help homeless people as the temperature drops. The hot water bottles are labelled with directions to nearby businesses that have agreed to provide hot water. The scheme is run by the Hot Water Bottle Network, which operates in Bristol, Bath, Leicester, and Brighton, and depends on donations of hot water bottles and participation from local businesses.