It seems the paper published a few days ago in Environmental Research Letters (see In the News 10th November) aimed at debunking the Svensmark theory (while ignoring various other solar theories) has inadvertently kicked itself in the shin by claiming the 'simple basic physics' of greenhouse theory greatly exaggerates global warming – see http://hockeyschtick.blogspot.co.uk/2013/11/new-paper-shows-simple-basic…
He also provides a link to the full paper.