2011-09-05 11:35:22Alkalinity already present in seawater can prevent severe pH excursions for periods of thousands of years.
Doug Mackie
Doug Mackie

Alkalinity already present in seawater can prevent severe pH excursions for periods of thousands of years.

Judging from comments on other blogs I think we overestimated somewhat the background and science training of SkS readers. That being so, it would be good to get some feedback on this 3 level rebuttal to the above alkalinity claim. It is embargoed so I think that means only those with   Yaknee White clearance can see it.

An important part of this is the fact that alkalinity is NOT the same as the opposite of acidity but that takes quite a lot of explaining and I mostly avoid it.

We have also roughed out a LONG rebuttal of the 'acid seas' SPPI document mentioned in the rebuttal. (It always takes a lot to explain why a quote out of context means the opposite). I think we need a break from series about ocean acidification for a while but at some point there are 3-4,000 words ready to roll. Other than this document and the beyond parody Floor Anthoni, I don't know of any science based attempts to deny ocean acidification. Are there any more anyone knows of?

Anyhow, feedback on the level of the rebuttals please.

2011-09-06 12:11:24
Andy S


Matt Ridley, who has a reputation for writing good quality science books (in biology, anyway), has poo-poohed ocean acidification and is well known for writing in his book the Rational Optimist :  “Ocean acidification looks suspiciously like a back-up plan by the environmental groups in case the climate fails to warm: another try at  condemning fossil fuels.” Obviously, that's not science-based but he is considered by many of the unwashed to be something of a scientific guru.

He has been debated and rebutted on this here and here.

I touched on this briefly in my recent SkS series on Ridley. See here under the PETM heading.

2011-09-08 14:28:23
Doug Mackie
Doug Mackie

Yeah, I popped into Mark Lynas' blog when he was discussing Ridley. R does not have (afaik) any science claims.

2011-09-08 17:35:04
Rob Painting

Where's the rebuttal? I tried pasting the link into the search window but end up back here.

2011-11-10 10:28:18
Doug Mackie
Doug Mackie

sorry, forgot about this. try the link now.

2011-11-10 10:39:57
Doug Mackie
Doug Mackie

ahh I see. 

maybe it needs to be entered as 



2011-11-10 14:32:11Take-home?
John Cook


Doug, sorry, I'm struggling to see the take-home point in your rebuttal. I think your main point needs to be more clearly made and summary answers also added at the top of each rebuttal (eg - a one-liner summary for the Basic version that's no greater than 100 characters, a paragraph summary for the Intermediate and a paragraph summary for Advanced that can be longer if you like).