Do you ever have the experience of a book you’ve bought from abe or ebay turning up, and you can’t remember why you bought it? I got “The long-term impacts of increasing atmospheric carbon dioxide” by MacDonald today (The Long-term Impacts of Increasing Atmospheric Carbon Dioxide Levels, By Gordon James MacDonald, Published by Ballinger, 1982, ISBN 088410902X, 9780884109020, 252 pages) , and thought “hmm thats interesting, but why *this* book?”. Now I’m at home, I can find the answer: its really the JASON report. Aha.
Continue reading “JASON arrives”
Inel notes that Monckton thinks he was misrepresented on Earth: The Ratings Wars. Which is most amusing: something at last that Monckton and I agree on: E:TRS is misleading (though we’re talking about different progs in the series, of course). Or you can read TLstake on it instead.
He sez: I was interviewed for 90 minutes and all my views were backed up by sound scientific data, but this was all omitted. They made it sound as if these were just my personal views, as if I was some potty peer. It was caddish of them. The last bit is wonderful: clearly playing Bertie Wooster to the hilt; does he taken any of this seriously? Obviously no-one takes him seriously, but I thought he thought he was playing for real.
Oh, and since I’m here: go read Austin…where even the atheists worship on Sunday by Jules.
Or so says some spam for terradaily that made it to my inbox (which is just a rehash of the Berkley press release, though thankfully without the stupid flood picture). This is obvious b*ll*cks, as google shows. The wiki page is a bit rubbish, largely because the only example anyone can ever think of is the Younger Dryas, and we aren’t going to have another one of those (yes yes I know). Its certainly the only one terradaily can think of. Woods hole too. And there is a whole NRC report on ACC. And indeed if you look for “rapid” climate change you’ll find Spencer Wearts history.
But TD is pushing a new programme called IMPACTS, and they say: “climate change has occurred with frightening rapidity in the past and will almost certainly do so again” which seems just a bit strong. But they have decided to investigate four potential ACC’s:
1 instability among marine ice sheets, particularly the West Antarctic ice sheet;
2 positive feedback mechanisms in subarctic forests and arctic ecosystems, leading to rapid methane release or large-scale changes in the surface energy balance;
3 destabilization of methane hydrates (vast deposits of methane gas caged in water ice), particularly in the Arctic Ocean; and
4 feedback between biosphere and atmosphere that could lead to megadroughts in North America.
1 is exciting, but probably isn’t a runner; reading further down I think it just amounts to trying to model ice shelves properly, which as they say of western civilisation “might be a good idea”. 2 and 3 are probably OK, methane is in the news recently. 4 doesn’t excite me but then I don’t live there and I’m very insular.
Just to be clear: I’ve no objection to research on rapid climate change, just their pretence that this is a new thing, which I find irritating.
I decided to skip over the synthesis – how can I judge that, before reading the chapters its supposed to synthesise? I’ll come back to it.
Previous: Part I.
Chapter 2 “Future carbon dioxide emissions from fossil fuels” is by Nordhaus and Yohe; and by Ausubel and Nordhaus. Eli has laid into this, but he largely based his post on Oreskes et al. (henceforth, OCS), and I no longer think thats such a good thing to do. They say: Chapter 1, written by Nordhaus, Ausubel, and Gary Yohe,… but this is, a teensy bit wrong. The chapter in question is chapter 2 (chapter 1 is the synthesis) and OCS have glossed over some subtleties. Its actually in two parts. The first is by N+Y, and is their model and their predictions. The second (p 153) is by Ausubel and N and is a review of previous work. [Update: or is it possible that in the preliminary report, it was chapter 1? And really was joint between NYA? That would be confusing, if true]
Continue reading “Book club: Nierenberg. Part II: Future CO2”
AL (and V1S, sorry!) pointed me to http://www.esrl.noaa.gov/gmd/aggi/, which lead me to http://www.esrl.noaa.gov/gmd/ccgg/iadv/, from which I selected Barrow, as being in the Arctic, and CH4, as being methane, and 2000-2008, as being a small enough interval that you can see whats going on, and I got:
So there you have it: methane isn’t shooting up precipitously. Its a bit higher this year than last. OK, I know, those are preliminary data. But I think thats enough to rule out any major changes.
Its worth pointing out (JA has said this, but I forget where) that methane is an awful long way below the “std” BAU scenarios. I can’t find a recent one now, but the IPCC ’90 BAU scenario would have us at about 2200 ppbv by now.
BTW, Nuture says that CO2 [corrected] *emissions* are now increasing at 3.5 % a year, which is higher than it was. Don’t immeadiately know what concentrations are increasing at.
[Update: Small side note: here we have Nature linking to wiki. I didn’t know they did that -W]
I just found google charts (thanks NB) and you can see some nice ones here and maybe even discuss wheat yields. But for raw pointlessness I offer you:
(yes, I didn’t even manage to get the scaling right). Anyone found anything less useful done with google charts?
Various wild excitement about methane emissions from the Arctic shelf… Hot Topic, Inel and The Indescribably Overhyped, which latter reveals “exclusively” what Magnus translated several weeks ago.
Continue reading “Mr Methane”
I was going to have a 6,000th comment contest to line up with Seeds 1,000,000th comment contest. But the number bumped up while I wasn’t watching. Oops.
So I retrospectively declare the winner to have been Dave Rado for this. Though I’m not sure about the counting, so Eli wins second prize for this.
When I say “prize”… I’m not sure there are any actual prizes… Eli can have a refund of iced carrots perhaps. Dave can have… a photo:
Not quite the 6000th photo I took with my old Nikon, but close. This was 6k exactly. Ah, those were the days.
I felt sure that I’d used this as a title before. But google assures me that no-one has used the phrase, which I find rather hard to believe. Maybe I can copyright it. Its a useful phrase. I’m sure I remember it in the context of a Ray Bradbury story. Aha!. It has been used in books, 4 times says google. Well its all bad news, linked to widow-burning. I’m not complaining about anything as bad as that.
Continue reading “Year by year the evil grows”
It looks like I’m safe for this year. I’m being just a teensy bit premature, but its rather unlikely to change, people want to pay up 🙂 and others have said it anyway (irritatingly that link will probably fade, so to quote “The Arctic sea ice cover appears to have reached its minimum extent for the year, the second-lowest extent recorded since the dawn of the satellite era”). I’m basing my victory on http://www.ijis.iarc.uaf.edu/en/home/seaice_extent.htm as of today.
Although I won, I didn’t win by as much as I expected, so in some sense my prediction was wrong. But I’ll take the cash anyway. Those who bet in carrots or beer are excused until we meet face to face. Those who want to use paypal, my email is wmconnolley (at) gmail.com.
I’ve decided to slightly shift my ground, and assert that 2007 (and to a lesser extent 2008) in sea ice are like the 1998 ENSO in temperature: large anomalies on top of an existing trend. So I predict that there will be more ice in 2009 than in 2007. Because I like their graphics, the bet is based on the IARC AMSR data, though I’m sure we can agree some other series if you really like.
Continue reading “Sea ice: declaring victory and returning to the fray”