Republican strategist Frank Luntz and editor of sceptic magazine Michael Shermer and oil giant Exxon and then Lomborg.
Now to the list we can add Daily Mail science correspondent, Michael Hanlon:
I have long been something of a climate-change sceptic, but my views in recent years have shifted. For me, the most convincing evidence that something worrying is going on lies right here in the Arctic. Because while across most of the world evidence for current climate change is often inconclusive and anecdotal, the huge ice sheet which sits atop this, the largest island in the world, appears to be cracking up before our eyes. And on a timescale of decades rather than the millennia many predicted.
Just five days ago, a 'superberg', measuring 100sq miles broke off the Petermann Glacier in the north-west of the island and floated into the ocean - the largest chunk of ice to break off Greenland for nearly half a century.
(Amazingly he still thinks it might be eagerated a bit after that, but hey, you don't expect Rome to be built in a day - at least now he's open to the evidence).
Great commentary on this and more here.