Geoengineering Trials

It will be interesting to see how this geoengineering trial goes. This is for the so-called SPICE trial:

FIELD trials for experiments to engineer the climate have begun. Next month a team of UK researchers will hoist one end of a 1-kilometre-long hose aloft using a balloon, then attempt to pump water up it and spray it into the atmosphere.

Naturally this all worries me, for reasons that I’ve tried to articulate in papers and here on this blog. See, for instance this and this.