The illogical hypocrisy of some climate deniers like Andrew Bolt has resulted in the posting of a guest blog at Graham Readfearn’s Green blog at “The Courier Mail”. Unfortunate but necessary. Enjoy.

‘If you only buy one book on climate change, this should be it.’
Professor John Quiggin, Economist, Author of 'Zombie Economics'
'Humanity's greatest challenge is to minimise the consequences of climate change. With challenge comes opportunity. This book is about opportunity'
Professor Peter Doherty, Nobel Prize winner

Looks like you need to inform the public with some answers over at Bolt’s blog. Not that they expect it, as your crowd has a dismal record when confronted like this.
Ben,
I have been writing software for 30 years now (yes, even some modelling software …).
My outlook has been formed to some extent by having to converse with computers all day. They are extremely pedantic, and have no truck at all with the sort of fuzzy thinking that normal people often assume is ‘logical’.
But, coming from a high-profile Climate Scientist such as yourself, this ‘sunscreen’ argument is flabbergasting.
To paraphrase Wolfgang Pauli (you have heard of Pauli have you not Ben ?) it is so bad it’s not even wrong.