Study: Sea Level Rise Revised Downward

Reposted from Roy Spencer’s Blog July 21st, 2017 by Roy W. Spencer, Ph. D. If I had not looked past the headline of the press report on a new study, I would have just filed it under “It’s worse than we thought”. A new study in Nature reported on July 17 carried the following headlines:…

More Fun With Sea Level

The Permanent Service for Mean Sea Level (PSMSL) is perhaps the best source for sea level data. Established in 1933, the Permanent Service for Mean Sea Level (PSMSL) has been responsible for the collection, publication, analysis and interpretation of sea level data from the global network of tide gauges. It is based in Liverpool at…

Talking Truth to Climate Consensus

By Rud Istvan A sound bite summary* The climate consensus now has two derogation levels for those who disagree. Climate ‘contrarians’ like Bjørn Lomborg disagree about mitigation policies. Climate ‘deniers’ like Judith Curry disagree about the underlying climatology. The consensus does not any want any disagreement, since their science is ‘settled’ and solutions ‘clear’. They…

The Ninth First Climate Refugees

Guest Post by Willis Eschenbach [see update] Well, the claims of the “first climate refugees” are coming up again. I think we’re up to the ninth first climate refugees, it’s hard to keep track. In any case, I came across this: International leaders gathering in Paris to address global warming face increasing pressure to tackle…

Is The Signal Detectable?

Guest Post by Willis Eschenbach [UPDATE] In the comments, Nick Stokes pointed out that although I thought that Dr. Shaviv’s harmonic solar component was a 12.6 year sine wave with a standard deviation of 1.7 centimetres, it is actually a 12.6 year sine wave with a standard deviation of 1.7 millimetres (5 mm peak to…

The Missing ~ 11-Year Signal

Guest Post by Willis Eschenbach Dr. Nir Shaviv and others strongly believe that there is an ~ 11-year solar signal visible in the sea level height data. I don’t think such a signal is visible. So I decided to look for it another way, one I’d not seen used before. One of the more sensitive…

My Thanks, Apologies, and Reply to Dr. Nir Shaviv

Guest Post by Willis Eschenbach Dr. Nir Shaviv has kindly replied in the comments to my previous post. There, he says: Nir Shaviv  August 15, 2015 at 2:51 pm There is very little truth about any of the points raised by Eschenbach in this article. In particular, his analysis excludes the fact that the ocean…

The New Sunspot Data … and Satellite Sea Levels

Guest Post by Willis Eschenbach [UPDATE: Upon reading Dr. Shaviv’s reply to this post, I have withdrawn any mention of “deceptive” from this post. This term was over the top, as it ascribed motive to the authors. I have replaced the term with “misleading”. This is more accurate since it describes the effect of the analysis…

Dr. Trenberth Redux

Guest Post by Willis Eschenbach A couple days ago, I was given a copy of a most interesting interchange from 2011 between Dr. Kevin Trenberth and a layman asking him a question. The sender of the question recently passed it on to me. I’ve redacted the email addresses and the name of the person asking the question,…

The Sea Level Cycles Get More Elusive

Guest Post by Willis Eschenbach In my last post on the purported existence of the elusive ~60-year cycle in sea levels as claimed in the recent paper “Is there a 60-year oscillation in global mean sea level?”, I used a tool called “periodicity analysis” (discussed here) to investigate cycles in the sea level. However, some people…

The Elusive ~ 60-year Sea Level Cycle

Guest Post by Willis Eschenbach I was referred to a paywalled paper called “Is there a 60-year oscillation in global mean sea level?”  The authors’ answer to the eponymous question is “yes”, in fact, their answer boils down to “dangbetcha fer sure yes there is a 60-year oscillation”, viz: We examine long tide gauge records…

Sea Water Level, Fresh Water Tilted

Guest Post by Willis Eschenbach Among the recent efforts to explain away the effects of the ongoing “pause” in temperature rise, there’s an interesting paper by Dr. Anny Cazenave et al entitled “The Rate of Sea Level Rise”, hereinafter Cazenave14. Unfortunately it is paywalled, but the Supplementary Information is quite complete and is available here.…

What to do about The Flood Next Time

Guest Post by Kip Hansen   Corrigendum: Due to the simple mis-reading of a multi-column spreadsheet from this paper, the magnitude of the AIG Subsidence for The Battery was misstated as “-2.3mm/yr”. The number given is for Sandy Hook, NJ. The correct figure for The Battery, NY is -1.35mm/yr. This changes the details of the…

Sunny Spots Along the Parana River

Guest Post by Willis Eschenbach In a comment on a recent post, I was pointed to a study making the following surprising claim: Here, we analyze the stream flow of one of the largest rivers in the world, the Parana ́ in southeastern South America. For the last century, we find a strong correlation with…

Sunspots and Sea Level

Guest Post by Willis Eschenbach I came across a curious graph and claim today in a peer-reviewed scientific paper. Here’s the graph relating sunspots and the change in sea level: And here is the claim about the graph: Sea level change and solar activity A stronger effect related to solar cycles is seen in Fig.…

Oh say can you see modern sea level rise from a geological perspective?

Guest post by David Middleton Experts say the IPCC underestimated future sea level rise A new study surveys 90 sea level rise experts, who say sea level rise this century will exceed IPCC projections Wednesday 4 December 2013 John Abraham It looks like past IPCC predictions of sea level rise were too conservative; things are…

The Marshall Islands and their Sea Level Changes

A short comment by Nils-Axel Mörner UPDATE: See the follow up post here: The Most Important Sea Level Graph This is the sea level graph (from Kwajalein) recently being circulated and claimed to show an alarming acceleration of a proposed general sea level rise. Yes, this curve rises fairly rapidly from 1990 to 2012. But for…

New study: Antarctic and Greenland ice sheet melt may be natural event, no consensus on cause

Ice sheets are the largest potential source of future sea level rise – and they also possess the largest uncertainty over their future behaviour From the University of Bristol Continuous satellite monitoring of ice sheets needed to better predict sea-level rise The findings, published in Nature Geoscience, underscore the need for continuous satellite monitoring of…

The Sixth First Climate Refugees

Guest Post by Willis Eschenbach For years now, folks have searched desperately for the “fingerprints” of human climate change. These are things that are supposed to reveal how and where humans are affecting the climate. One of these fingerprints, which is alleged to be a sure and certain harbinger of the thermal end times, is…

Weekly Climate and Energy News Roundup

The Week That Was: 2013-06-08 (June 8, 2013)  Brought to You by SEPP (www.SEPP.org) The Science and Environmental Policy Project ################################################### Quote of the Week: There is no harm in doubt and skepticism, for it is through these that new discoveries are made. Richard Feynman ################################################### Number of the Week: 73 ################################################### THIS WEEK: By…

F10.7 Flux, Sea Level and the Holocene

Guest post by David Archibald George Orwell said,” He who controls the present, controls the past. He who controls the past, controls the future.” Some amongst us have used that as an instruction manual and have attempted to create confusion about the sunspot number record. We can sidestep all that by using the F10.7 flux…

Sea Level Acceleration: Not so Fast Recently

By Dr. Patrick Michaels from World Climate Report Sea level rise is a topic that we frequently focus on because of all the gross environmental alterations which may result from anthropogenic greenhouse gas emissions, it is perhaps the only one which could lead to conditions unexperienced by modern societies. A swift (or accelerating) sea level…

Historical Imagery of Greenland Glaciers Lessens Sea Level Rise Alarm

By Pat Michaels via World Climate Report A new study using historical images of glaciers in southeast Greenland to investigate glacier response to climate changes suggests that the recently observed acceleration of ice loss from Greenland may not be a long-term phenomenon. Instead, as marine terminating glaciers reach their grounding line and as the termini…

Is Sea Level Rise Accelerating?

Guest post by Paul Homewood     It is generally accepted that sea levels increased during the 20thC at a rate of about 185mm or about 7”. Furthermore studies suggest that there was no acceleration in this rate during that time. One of the best known studies was by Bruce Douglas, who produced the above…

Ice capades – Some Himalayan Glaciers Growing, study suggests a negative sea level rise adjustment

I wonder if Rajenda Pachauri will call this “voodoo science“? A previous study by the UC Santa Barbara found that the Karakoram glaciers are mostly stagnating, possibly due to debris, the author said then that: “There is no ‘stereotypical’ Himalayan glacier,” said Bookhagen. “This is in clear contrast to the IPCC reports that lumps all Himalayan…

Envisat’s satellite failure launches mysteries

I’ve been watching with interest and concern some of Steve Goddard’s postings on Envisat on the abrupt changes in their recent sea level data. To me, something didn’t seem quite right, and I expressed concerns privately along those lines that I didn’t know the causes of what appear to be recent unexplained “adjustments” in the…

Fundamental questions on Isostasy and Mean Sea-Level

Guest post by Andi Cockroft Firstly, let me declare that I am not a current student of Geology or Geophysics. I studied Mathematics, Computer Science and Geology at University way back in the 60’s and I have focused my entire working life in IT. To this day, I still run a small IT company in…

Flanders fearful flooded fields

From the University of British Columbia,  David Flanders is trying to scare Canadians over sea level rise. Only one problem, the math doesn’t work. Preparing for the flood: Visualizations help communities plan for sea-level rise Researchers at the University of British Columbia have produced computer visualizations of rising sea levels in a low-lying coastal municipality,…

Sea level still not cooperating with predictions

The university of Colorado has recently updated their sea level graph from the TOPEX satellite data. The 60 day smoothed trend is still stalled and shows no rise over what was seen since the peak in mid 2010: Data Raw data (ASCII) | PDF | EPS Here’s the same data with season variation retained, but…

The battle over sea level in JCR

John Droz writes in with this: A few months ago a widely-publicized article by Houston and Dean was published in the Journal of Coastal Research (and on your site), noting that although sea-level is rising; the tide gauge data does not show any increased rate of rise (acceleration) for the 20th and early 21st centuries.  This was augmented by a recent…

Update on the CU sea level page status

Things are changing with global sea level data reporting. As I mentioned in my post April 6th: What’s delaying UC sea level data from being updated? As you can see in the graph above, the data has not been updated since mid 2010. Normally an update would appear sometime in Feb 2011 based on their previous…

Bombshell conclusion – new peer reviewed analysis: “worldwide-temperature increase has not produced acceleration of global sea level over the past 100 years”

The paper is currently in press at the Journal of Coastal Research and is provided with open access to the full publication. The results are stunning for their contradiction to AGW theories which suggest global warming would accelerate sea level rise during the last century. “Our first analysis determined the acceleration, a2, for each of…