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.

Recent PagesClick to refresh
Kellyanne Conway Finally Admits the Audit Was Just an Excuse Speaking on ABC News’ Sunday morning show This Week, White House counselor Kellyanne Conway finally admitted what had been plainly obvious to anyone paying attention — Donald Trump is never going to voluntarily release his tax returns, so the ...
Birth Control Works
6 hours, 26 minutes ago
Views: 149 • Comments: 0 • Rating: 0
Tweets: 1 • Share to Facebook
Shares: 2
Comments: 0
: 2
The Women’s March Succeeded Because It Spoke to Women’s Outrage  was so wrong about the pussy hats. When I first heard that crafty women were knitting them by the thousands I thought, What a colossal waste of time, energy, and money—and besides, pink? Please. Cute and adorable is ...
Birth Control Works
6 hours, 28 minutes ago
Views: 110 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Donald Trump Signs Anti-Abortion Executive Order Surrounded by Men Trump reinstated the Mexico City policy, also known as the global gag rule, which was first put in place by President Ronald Reagan in 1984. It prohibits giving U.S. funding to international nongovernmental organizations that offer or advise on ...
Birth Control Works
6 hours, 29 minutes ago
Views: 428 • Comments: 0 • Rating: 1
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Former Executive Director of Anti-Immigrant Hate Group FAIR Joins Trump Administration Kirchner worked at America’s most influential anti-immigrant organization for almost ten years before leaving in 2015 to become an immigration advisor to the Trump campaign. The appointment, reported by multiple sources, suggests that President Trump intends to follow through ...
Tarkloon
6 hours, 38 minutes ago
Views: 89 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
Supreme Court Won’t Hear Appeal From Texas on Voter ID Case WASHINGTON — The Supreme Court rejected on Monday an appeal from Texas officials seeking to restore the state’s strict voter ID law. As is the court’s custom, its brief order in the case, Abbott v. Veasey, No. 16-393, gave ...
Tarkloon
14 hours, 12 minutes ago
Views: 141 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0
National Pie Day Peach Pie Recipe - NYT Cooking Pie to Impeach By Ingredients For the pastry: 2 cups flour 1 teaspoon salt ⅔ cup cold lard (Allard usually uses 3 tablespoons of butter as part of the lard) [VB uses Crisco] ¼ cup ice water For the filling: 4 to 6 ...
The Vicious Babushka
19 hours, 15 minutes ago
Views: 213 • Comments: 0 • Rating: 0
Tweets: 4 • Share to Facebook
Shares: 0
Comments: 0
: 0
It’s National Pie Day! Lemon Meringue Pie Recipe - NYT Cooking Ingredients The filling: 1 9-inch pie shell 1 ½ cups sugar ⅓ cup cornstarch 1 ½ cups boiling water 3 egg yolks, slightly beaten 4 tablespoons lemon juice 1 ½ tablespoons grated lemon rind 3 tablespoons butter The meringue: ...
The Vicious Babushka
19 hours, 28 minutes ago
Views: 180 • Comments: 0 • Rating: 1
Tweets: 1 • Share to Facebook
Shares: 0
Comments: 0
: 0
He Shot the Trump Inauguration Protests and Got More Than He Bargained For I couldn’t get a good shot, but there was a sign I was able to sit on that put me about 8 feet up. I took a few shots, and then a group of maybe four or five Trump ...
Unshaken Defiance
1 day, 14 hours ago
Views: 616 • Comments: 1 • Rating: 4
Tweets: 2 • Share to Facebook
Shares: 0
Comments: 0
: 0
Women’s Marches: More Than One Million Protesters Vow to Resist President Trump More than 1 million people gathered in Washington and in cities around the country and the world Saturday to mount a roaring rejoinder to the inauguration of President Trump. What started as a Facebook post by a Hawaii retiree ...
Tarkloon
1 day, 21 hours ago
Views: 469 • Comments: 0 • Rating: 1
Tweets: 6 • Share to Facebook
Shares: 1
Comments: 0
: 1
The All-American Rejects - Top of the WorldMusic video by The All-American Rejects performing Top Of The World. (C) 2006 Interscope Records
Tarkloon
2 days, 5 hours ago
Views: 154 • Comments: 0 • Rating: 0
Tweets: 0 • Share to Facebook
Shares: 0
Comments: 0
: 0