As anyone who’s been near government data publishing or asset tracking works attest - That’s a sure fire way to either publish stale/wrong information or simply lose trees.

I’m not in London but surely there is more than 100k in public policy good to be had in promoting trees as assets that are worth stewarding well. Is population scale care for trees with a month of arborist days?

Urban forests make air conditioning work. Consider it an indirect investment in power grid resistance.

They also help surface drainage. Consider it an investment in roads and stormwater.