Well the powers that be here in the UK ie theScience and Technology Committee, working closely with the US house of representatrives Science and Technology Committee are cooking up something interesting...

The Regulation of Geoengineering:
Here you can browse the report together with the Proceedings of the Committee. The published report was ordered by the House of Commons
to be printed 10 March 2010.
http://www.publications.parliament.uk/pa/cm200910/cmselect/cmsctech...

for those of you that like PDF's:
http://www.publications.parliament.uk/pa/cm200910/cmselect/cmsctech...

Its best just to visit the site read the paper and let your draw drop.. but here's a bit from the conclusion.....

"We are clear that serious consideration for the regulatory arrangements for geoengineering needs to start
now, not once highly disruptive climate change is under way. If
we start now it will provide the opportunity "to explore
the technological, environmental, political and regulatory issues
in a measured, science-led process". The UN is the route by which eventually we envisage the regulatory
framework operating but first the UK and other governments need
to prime the UN pump."

You've to to love that last bit.. Prime the UN pump... what can they possibly mean by that..:)