All,
You may be interested to read this critical piece on the recent polar geoengineering paper by Siegert et al in LinedIn - https://www.linkedin.com/pulse/geoengineering-evidence-ethics-refusing-know-marc-macias-fauria-riw4f/?trackingId=nFDJDq1mSHqa9xOmkAZkzA%3D%3D.
For those without access to LinkedIn, I have extracted the text into a Word doc that I have attached.
Chris.