Pages

Jump to bottom

5 comments

1 Norman Branitsky  Sun, Jul 4, 2010 7:46:35pm

Seems to be a nicely laid out paper. I have two comments:
1. B4 "Climate change is driven by cosmic rays"
Claims of a CRF-climate link on the million year time scale (Shaviv and Veizer 2003)
have been disputed (Rahmstorf et al. 2004).

Here is Shaviv's response on his web site to the Rahmstorf et al.2004 paper:
"Rahmstorf et al. 2004 published a comment stating that almost all Veizer and I did was wrong. We showed in our response why every comment is irrelevant or invalid. In their response to the rebuttal, Rahmstorf et al. did not address any of our rebuttal comments (I presume because they could not). Instead, they used faulty statistics to demonstrate that our results are statistically insignificant. (Basically, they used Bartlett's formula for the effective number of degrees of freedom in a limit where the original derivation breaks down)."

Just because someone has written a paper with lots of citations, you still have to be diligent as a reader because not all the citations may be valid.

2. C6 "CO2 does not drive climate" is missing from this paper.
(The -=- was the only way I could make a reasonable table as more than 3 characters like "." or "-" are collapsed to just 3 characters.)

Time-=-=-=-=-Glaciation-=-=-=-=-=-=-CO2 (ppmv)
450-420 Ma-=-Ordovician-Silurian-=-=-4000(*)
360-260 Ma-=-Carboniferous-Permian-=400
151-132 Ma-=-Jurassic-Cretaceous-=-=2000(*)
Present Day-=-=-=-=-=-=-=-=-=-=-=-=-389

(*) Berner, R. A. and Kothavala, Z. 2001: Geocarb III: A revised model of atmospheric CO2 over Phanerozoic time.
American Journal of Science 301:182-204

The obvious question the Urs Neu paper neglects to answer is how the Earth could be covered in glaciers if the atmospheric CO2 was 5 or 10 times the present day value? Why wasn't the Earth's climate a runaway greenhouse with so much atmospheric CO2?

2 freetoken  Sun, Jul 4, 2010 7:50:16pm

re: #1 dinky

The obvious question the Urs Neu paper neglects to answer is how the Earth could be covered in glaciers if the atmospheric CO2 was 5 or 10 times the present day value? Why wasn't the Earth's climate a runaway greenhouse with so much atmospheric CO2?


These sort of questions get asked, and answered, all the time.

BTW, of what period are you thinking when you say "10 times the present day value"?

3 Norman Branitsky  Sun, Jul 4, 2010 8:31:38pm

re: #2 freetoken

These sort of questions get asked, and answered, all the time.


I'm just asking. Have any links you can direct me to that answers this specific question?

BTW, of what period are you thinking when you say "10 times the present day value"?


Ordovician-Silurian Glaciation (450-420 Ma) as listed in my table.

4 b_sharp  Sun, Jul 4, 2010 8:47:50pm

re: #1 dinky


The obvious question the Urs Neu paper neglects to answer is how the Earth could be covered in glaciers if the atmospheric CO2 was 5 or 10 times the present day value? Why wasn't the Earth's climate a runaway greenhouse with so much atmospheric CO2?

Although it isn't possible to know for sure, there have been several explanations given.

Simply put, during that time period, solar output was less than it is now, CO2 estimates for the time were high, the cooling preceded the CO2, and the increase in CO2 pulled the Earth out of the cooling period.

John Cook at Skeptical Science has a good write up on it including cites to specific papers.

5 b_sharp  Sun, Jul 4, 2010 8:58:29pm

Here is another paper disputing the work of Shaviv et al.

Again John Cook has an article on the Cosmic question including Shaviv's rebuttal to that paper and Sloan's response to the rebuttal.


This page has been archived.
Comments are closed.

Jump to top

Create a PageThis is the LGF Pages posting bookmarklet. To use it, drag this button to your browser's bookmark bar, and title it 'LGF Pages' (or whatever you like). Then browse to a site you want to post, select some text on the page to use for a quote, click the bookmarklet, and the Pages posting window will appear with the title, text, and any embedded video or audio files already filled in, ready to go.
Or... you can just click this button to open the Pages posting window right away.
Last updated: 2016-01-01 10:29 am PST
LGF User's Guide RSS Feeds Tweet

Help support Little Green Footballs!

Subscribe now for ad-free access!Register and sign in to a free LGF account before subscribing, and your ad-free access will be automatically enabled.

Donate with
PayPal
Square Cash Shop at amazon
as an LGF Associate!
Recent PagesClick to refresh
Constitutional Crisis II Trump’s ‘Emoluments’ Defense Argues He Can Violate the Constitution With Impunity. When the president of the United States violates the Constitution there must be a way for a federal court to hear the case and provide a remedy. Three different lawsuits have been filed against President Trump claiming that he ...
Unshaken Defiance
2 hours, 43 minutes ago
Views: 284 • Comments: 0 • Rating: 1
Tweets: 1 • Share to Facebook
Shares: 0
Comments: 0
: 0
Mad Men: Inside the Men’s Rights Movement—and the Army of Misogynists and Trolls It Spawned - Mother Jones On a balmy afternoon last June, dozens of demonstrators carrying “Stop the Violence” and “Rape is Rape” placards descended on the Hilton DoubleTree in downtown Detroit. They had come to protest the first-ever national gathering of the men’s rights ...
Birth Control Works
4 hours, 48 minutes ago
Views: 171 • Comments: 1 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Men Legally Allowed to Finish Sex Even if Woman Revokes Consent, NC Law States - Broadly ne May evening in 1977, Beverly Hester was sexually assaulted. According to the summary included in the North Carolina Supreme Court decision State v. Way, she testified that the perpetrator, Donnie Way, threatened to beat her if she didn't ...
Birth Control Works
4 hours, 55 minutes ago
Views: 177 • Comments: 0 • Rating: 0
Tweets: 3 • Share to Facebook
Shares: 0
Comments: 0
: 0
Trump’s WH Chemical Attack Warning Illustrates Further Admin Disarray What a way to run a free world. Several State Department officials typically involved in coordinating such announcements said they were caught completely off guard by the warning, which didn't appear to have been discussed in advance with other ...
Unshaken Defiance
6 hours, 47 minutes ago
Views: 306 • Comments: 0 • Rating: 0
Tweets: 1 • Share to Facebook
Shares: 0
Comments: 0
: 0
4 USAF Aircraft Destroyed or Damaged in a Week Thunderbirds F16 flipped when landing after their practice flight for Dayton Air Show. Two people hurt. 📷WHIO pic.twitter.com/LRcuVucKIm — Tom Podolec CTV News (@TomPodolec) June 23, 2017 A few days ago an F-16 crashed on takeoff at Ellington AFB, ...
Unshaken Defiance
7 hours ago
Views: 189 • Comments: 0 • Rating: 0
Tweets: 4 • Share to Facebook
Shares: 0
Comments: 0
: 0
The Mets, Jets, and Dems; My Triumvirate of Lost Causesblog.timesunion.comFor pictures, click on the link above. The Mets, Jets, and Dems; my triumvirate of lost causesBy Rob Hoffman on June 26, 2017 at 5:53 AM0I’m in a slump. This is an undeniable fact, and not one of those alternative ...
rhoffman
1 day, 11 hours ago
Views: 258 • Comments: 1 • Rating: -2
Tweets: 2 • Share to Facebook
Shares: 1
Comments: 0
: 1
Why Are So Many Queer Girls in Juvie? The findings come out of years of research done by Angela Irvine and Aisha Canfield for the National Council on Crime and Delinquency (both now work at Impact Justice). For this particular statistic, they anonymously surveyed 1,400 girls in ...
Birth Control Works
2 days, 1 hour ago
Views: 251 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
North Carolina Televangelist Indicted on Charges of Tax Crimes Coontz, 50, is described on his website as a "pastor, evangelist, television host, author, humanitarian, philanthropist, businessman." "a 2011 BMW, a 2011 Regal 2500 boat, a 2012 BMW convertible, a 2011 Lexus, a 2011 Land Rover, a 2006 Ferrari, ...
Tarkloon
2 days, 22 hours ago
Views: 332 • Comments: 1 • Rating: 2
Tweets: 1 • Share to Facebook
Shares: 1
Comments: 1
: 1
Isaac Asimov’s Best Arguments of All Time, Part One ➤ #Subscribe: goo.gl➤ Facebook: goo.gl➤ Twitter: goo.gl➤ Google+ : goo.gl➤ Site: goo.gl➤ Thanks for watching :) #Sciencetoday is channel uses for #education, #teaching, #review, #commentary, or research... If you have any issues with content, please contact us, for an ...
Tarkloon
2 days, 22 hours ago
Views: 287 • Comments: 0 • Rating: 2
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
AWOLNATION - Hollow Moon (Bad Wolf) (Official Video) AWOLNATION's official video for "Hollow Moon (Bad Wolf)". Watch the new AWOLNATION video Run (Beautiful Things) - YouTube From AWOLNATION’s new album, ‘RUN’, available now at:iTunes - smarturl.it CDs, Vinyl + Bundles - smarturl.itGoogle Play - smarturl.it Stream ‘RUN’ ...
Tarkloon
2 days, 22 hours ago
Views: 240 • Comments: 0 • Rating: 1
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0