Archives par mot-clé : Geology

Geologists: No Link Between Climate Warming And Rock Slides in European Alps!

by P. Gosselin, September 23, 2018 in NoTricksZone


Last year, August, 2017, a massive rockslide occurred on the north flank of the Piz Cengalo (3369 m) in the Swiss Alps, above the village of Bondo, located near the border to Italy.

No data suggesting warming is behind rock slides

In total some 4 million tonnes of rock and mud came tumbling down. The dramatic incident highlighted the hazards posed by rock slides for villages located near the picturesque mountains of the European Alps.

Though rockslides are not unusual, there has been growing scrutiny behind their causes lately. Unsurprisingly climate alarmists are opportunistically pointing the finger at climate warming.

 

 

A Geological Feud Over the Meghalayan? Or Just More Rubbish Published by the American Association for the Advancement of Science of America?

by David Middleton, September 24, 2018 in WUWT


Alternate Title: Yes, We Have No Anthropocene, We Have No Anthropocene Today! (Sung to the tune of Yes, We Have No Bananas)

 

Figure 4 from Finney & Edwards.  “Workflow for approval and ratification of a Global Standard Stratotype Section and Point (GSSP) proposal. Extensive discussion and evaluation occurs at the level of the working group, subcommission, and International Commission on Stratigraphy (ICS) Bureau. If approved at these successive levels, a proposal is forwarded to the International Union of Geological Sciences (IUGS) for ratification. This process is also followed for other ICS decisions on standardization, such as approval of names of formal units, of revisions to the units, and to revision or replacement of GSSPs.”

500 Million Years of Unrelatedness between Atmospheric CO2 and Temperature

by Davis W.J., 2017 in Climate/CO2Science


One final gem from Davis’ work is a pronouncement that follows a discussion on the lack of correlation between CO2 and temperature across the historical record, where he aptly reminds us that “correlation does not imply causality, but the absence of correlation proves conclusively the absence of causality.” Consequently, there should be no more doubt regarding the ineffectiveness of atmospheric CO2 to control or drive climate change. It is simply nothing more than a bit player, whose influence has been continually overestimated by climate alarmists. The big question now is whether or not 500 million years of these data will convince them otherwise!

from Davis 2017

Egalement: Le changement climatique : la règle en géologie

Highlights From the 2018 BP Statistical Review of World Energy

by David Middleton, September 12, 2018 in WUWT


Statistical Review of World Energy

Global primary energy consumption grew strongly in 2017, led by natural gas and renewables, with coal’s share of the energy mix continuing to decline

Energy developments

  • Primary energy consumption growth averaged 2.2% in 2017, up from 1.2 % last year and the fastest since 2013. This compares with the 10-year average of 1.7% per year.
  • By fuel, natural gas accounted for the largest increment in energy consumption, followed by renewables and then oil.
  • Energy consumption rose by 3.1% in China. China was the largest growth market for energy for the 17th consecutive year.

Carbon emissions

  • Carbon emissions increased by 1.6%, after little or no growth for the three years from 2014 to 2016.

[…]

BP

Despite the Never-Ending Death of Coal: It’s Still a Fossil Fueled World

Out with the Anthropocene – in with the Meghalayan

by Anthony Watts, September 11, 2018 in WUWT


WUWT readers may recall that climate activists wanted the current epoch we live in to be named the “Anthropocene”, because they believe humans are the dominate force on the planet. The official organization that decides such things, The International Commission on Stratigraphy, would have none of it, and nixed the naming recently. Now, here’s a summary of the the Meghalayan.


Welcome to the new Meghalayan age – here’s how it fits with the rest of Earth’s geologic history

Steve Petsch

Associate Professor of Geosciences, University of Massachusetts Amherst

Jurassic, Pleistocene, Precambrian. The named times in Earth’s history might inspire mental images of dinosaurs, trilobites or other enigmatic animals unlike anything in our modern world.

….

10 New Reconstructions Show Today’s Temperatures Still Among The Coldest Of The Last 10,000 Years

by K. Richard, September 10, 2018 in NoTricksZone


Even though CO2 concentrations hovered well below 300 ppm throughout most of the Holocene, newly published paleoclimate reconstructions affirm that today’s surface temperatures are only slightly warmer (if at all) than the coldest periods of the last 10,000 years.  This contradicts the perspective that temperatures rise in concert with CO2 concentrations.

 

Bottom Graph Source: Rosenthal et al. (2013)

Climatariat News Network: Interior Secretary Ryan Zinke isn’t a geologist because climate change.

by D. Middelton, September 8, 2018 in WUWT


Guest CNN-bashing by David Middleton (a geologist)

ran across this April 2018 article while looking for something else.  I totally missed this episode of Trump Derangement Syndrome.

Secretary Zinke’s stance on climate change is one of several reasons the Climatariat News Network decided that he was being dishonest in describing himself as a geologist…

A Second Letter to the Geological Society

by Andy May, August 29, 2018 in WUWT


In June of this year, Howard Dewhirst, a fellow of The Geological Society (London), wrote a letter to the President of the Society voicing the concern of 33 current and former fellows of the society, as well as other concerned geoscientists, that the Society’s position on climate change is outdated and one-sided. As of this writing, receipt of the letter has been acknowledged, but no reply has been received. Given the long period of time, Howard has sent a second letter to the Society, it is reproduced below.

Dear President

We understand that the council is reviewing the The Geological Society’s 2010 and 2013 position papers on climate change which was the subject of the letter we wrote to the society in early June. We also understand that despite the clear interest amongst Fellows – and other scientists, that the society will not be publishing further letters until the new position paper has been agreed. If true, we (the contributors to the first letter) think this is unfortunate, as now would be the very time to solicit informed opinion from Fellows and others as there clearly is not a consensus. …

Geologists uncover new clues about largest mass extinction ever

by University of Tennessee at Knoxville, August 27, 2018 in ScienceDaily from Nature.


Through the analysis of samples, Broadley and his team tried to determine the composition of the lithosphere. They found that before the Siberian Flood Basalts took place, the Siberian lithosphere was heavily loaded with chlorine, bromine, and iodine, all chemical elements from the halogen group. However, these elements seem to have disappeared after the volcanic eruption.

“We concluded that the large reservoir of halogens that was stored in the Siberian lithosphere was sent into the earth’s atmosphere during the volcanic explosion, effectively destroying the ozone layer at the time and contributing to the mass extinction,” Broadley said.

Integrated genomic and fossil evidence illuminates life’s early evolution and eukaryote origin

by Holly C. Betts et al., August 20, 2018 in NatureEcology&Evolution


We derive a timescale of life, combining a reappraisal of the fossil material with new molecular clock analyses. We find the last universal common ancestor of cellular life to have predated the end of late heavy bombardment (>3.9 billion years ago (Ga)). The crown clades of the two primary divisions of life, Eubacteria and Archaebacteria, emerged much later (<3.4 Ga), relegating the oldest fossil evidence for life to their stem lineages. The Great Oxidation Event significantly predates the origin of modern Cyanobacteria, indicating that oxygenic photosynthesis evolved within the cyanobacterial stem lineage. Modern eukaryotes do not constitute a primary lineage of life and emerged late in Earth’s history (<1.84 Ga), falsifying the hypothesis that the Great Oxidation Event facilitated their radiation…

Chemical nature of the 3.4 Ga Strelley Pool microfossils

by J. Allen et al., 2018 in GeochemicalPerspectiveLetters


The biogenicity of putative traces of life found in early-Archean rocks is strongly debated. To date, only equivocal lines of evidence have been reported, which has prevented a full consensus from emerging. Here we report elemental and molecular data from individual organic microfossils preserved within the 3.4 billion-year-old cherts of the Strelley Pool Formation, Western Australia. The present results support the growing body of evidence advocating their biogenicity, promoting them as the oldest known authentic organic microfossils. These microfossils consist of nitrogen- and oxygen- rich organic molecules that have been only slightly degraded despite experiencing temperatures of ~300 °C. Such molecular preservation emphasises the palaeobiological potential of the Earth’s oldest geological record, whilst providing a promising window into the early biosphere.

See also here

A new volcanic province: an inventory of subglacial volcanoes in West Antarctica

by M. Van Wyk De Vries et al., August 16, 2018 in Geol.Soc.London


Abstract: The West Antarctic Ice Sheet overlies the West Antarctic Rift System about which, due to the comprehensive ice cover, we have only limited and sporadic knowledge of volcanic activity and its extent. Improving our understanding of subglacial volcanic activity across the province is important both for helping to constrain how volcanism and rifting may have influenced ice-sheet growth and decay over previous glacial cycles, and in light of concerns over whether enhanced geo- thermal heat fluxes and subglacial melting may contribute to instability of the West Antarctic Ice Sheet. Here, we use ice-sheet bed-elevation data to locate individual conical edifices protruding upwards into the ice across West Antarctica, and we propose that these edifices represent subglacial volcanoes. We used aeromagnetic, aerogravity, satellite imagery and databases of confirmed volca- noes to support this interpretation. The overall result presented here constitutes a first inventory of West Antarctica’s subglacial volcanism. We identified 138 volcanoes, 91 of which have not previously been identified, and which are widely distributed throughout the deep basins of West Antartica, but are especially concentrated and orientated along the >3000 km central axis of the West Antarctic Rift System.

Blow to warmists, the proposed ‘Anthropocene’ epoch has been denied by ICS

by Anthony Watts, August 13, 2018 in WUWT


The global body tasked with naming geological eras, the International Commission on Stratigraphy, has rejected the proposed Anthropocene epoch,  the controversial ‘geological’ epoch in which mankind allegedly dominates natural processes. The international commission has now rejected the proposal and has instead split the Holocene Epoch into three different geological ages, all of which were primarily shaped by natural, not human factors.

See also here

“Back to the future of climate change”

by Anthony Watts, August 10, 2018 in WUWT


Syracuse University professor uses ancient marine sediment as benchmark for present, future climate models

SYRACUSE, N.Y. – Researchers at Syracuse University are looking to the geologic past to make future projections about climate change.

Christopher K. Junium, assistant professor of Earth sciences in the College of Arts and Sciences (A&S), is the lead author of a study that uses the nitrogen isotopic composition of sediments to understand changes in marine conditions during the Paleocene-Eocene Thermal Maximum (PETM)–a brief period of rapid global warming approximately 56 million years ago.

Junium’s team–which includes Benjamin T. Uveges G’17, a Ph.D. candidate in A&S, and Alexander J. Dickson, a lecturer in geochemistry at Royal Holloway at the University of London–has published an article on the subject in Nature Communications (Springer Nature, 2018).

A Geological Perspective of Wildfires

by David Middleton, July 31, 1018 in WUWT


This post was inspired by Anthony Watts’ recent post about wildfires and their unwillingness to cooperate with the Gorebal Warming narrative.

A Geological Perspective of Wildfires

The Fire Window

Geological evidence for ancient wildfires generally consists of sedimentary charcoal deposits (inertinite).  Fossil charcoal is also a key factor in understanding the evolution of Earth’s atmosphere, particularly oxygen content.  The first clear evidence of fire is in the Late Silurian.