The UN Environmental Program's recent report into SRM concludes that it is not currently a realistic or wise plan.
"UNEP concurs with the panel that, at present, large-scale, or operational deployment of SRM technologies is not necessary, viable, prudent or sufficiently safe, given the limited scientific understanding and uncertainty about the potential impacts and unintended consequences," says UNEP’s Chief Scientist Andrea Hinwood.
"The review concludes that SRM cannot replace reducing greenhouse gas emissions."
Nonetheless, the body doesn't rule out the method altogether, with the report concluding that their assessment of the technique "may change should climate action remain insufficient".