Actually, as I explained previously, he's far wronger than that, due to ocean acidification and the shift in the ocean's carbon chemistry.
There's always been an enormous imbalance between the attention given to AGW and to ocean acidification as consequences of carbon pollution. This is entirely understandable, given that weather hits us where we live, and does mean that the denier position on acidification is undeveloped. It's just vague hand-waves and triumphant declarations that in proper scientific nomenclature the oceans are just getting
less alkaline. "Acidification" is alarmist rhetoric, oceanographers and marine biologists are all after research grants, yadda yadda, it's all terribly weak.
Ocean acidification has yet to find its Steve McIntyre or its Watts. They might be out there, though, minnows now but one day to be Titans of the Deep.
I've long been of the opinion that the first food catastrophe we'll hit won't be down to agricultural failure so much as ocean collapse, not just from AGW and acidification but also from industrial fishing and run-off and sheer vandalism. We'll see crises from agriculture and cereals, but catastrophe from the oceans and the protein it provides.
Only then will the McIntyre or Monckton of the oceans emerge from the slime to lead the chorus of denial that this is not really a bad thing (no shark attacks with no sharks, so what now, you're in favour of shark attacks? Your pseudonym, your avatar, now it all becomes clear, you're a sharkist) and it's a natural cycle which is now recovering, and it's meant as a distraction from AGW which hasn't turned out as bad as the alarmists said.
From the security of my own worldview I find it all so predictable. Which gives me comfort.