Climate hoax

What if climate change is the greatest hoax ever archieved:

from Atheist Movies

The day after tomorrow ?

Snow across Great Britain

... anyway - Europe is still inhabited...

Martian spillway

On images of the Mars Reconnaissance Orbiter -MRO- a british research team has discovered possible "spillway" of ancient martian lakes.
The pits in the equatorial region of Ares Vallis were first explained as remains of evaporating water ice, but the discovered channels seems to connect different basins, much more like thermokarst- lakes connected by small rivers. The estimated age of the features is with only 3 billion years surprisingly young.

References:

Altes Seensystem auf dem Mars entdeckt. SpiegelOnline 06.01.2010
WARNER et al. (2009): Hesperian equatorial thermokarst lakes in Ares Vallis as evidence for transient warm conditions on Mars. Geology 38:71-74

Did volcanoes kill the Mammoth?

The cause(s) of the Pleistocene Megafauna extinction is(are) still unclear. Various explanations were proposed, ranging from human activity (hunting or disease spreading) to climate change or sea level rise, and since the last year, a possible extraterrestrial impact. But an important factor until now was less considered - volcanism. Volcanoes can have an impact on climate and ecosystems, for example ash can block the sunlight, and poison large territories.
A short, but intriguing paper by Dmitry A. Rubam summarizes and analyze the idea that intensified volcanism at the end of the last glacial period maybe triggered the biotic crisis. The volcanic activity of the last 50.000 years can be reconstructed by ash layers and geochemistry of ice cores, and compared to extinction patterns on the different continents.

The data show a higher frequency of eruptions near the end of the Pleistocene, but the demise of the fauna doesn’t coincide exactly with this period, especially the extinction in Australia happened previously. However it is possible that only a certain "sum" of volcanic events finally triggers a biotic response.

Fig. 1 - Temporal relationships between the volcanic eruption frequency and extinction events. Volcanism intensifications are highlighted by grey circles (from RUBAN 2009).

The preliminary results show that intensified volcanism cannot provide a better explanation of the crisis than other triggers; however none of the possible triggers alone provide an ultimate explanation.

The evidence makes it plausible, that an intensification of volcanism just before the end of the Pleistocene was able at least to contribute to the extinction of megafauna in America and Eurasia.

References:
RUBAN, D.A. (2009): A possible contribution of volcanism to the end-Pleistocene megafaunal etinction. Natura Nascosta 39:26-32

The Future Of Mankind

Carl Sagan Reflects:

Did the Pleistocene Megafauna and Dinosaurs Live at the Same Time?

A national science foundation is a public organization with the task to perform and promote research activities and scientific knowledge and its applications in our daily live.

If you had to promote earth science and biology, what would you do?

Would you finance the conservation of one of the largest dinosaur ichnosites in the world - at moment abandonet and slowly decaying, would you promote research on Pleistocene to Pliocene sediments full of remains of marine and terrestrial mammals, - yet not full understand, would you place under protection nesting sites of Triassic reptiles - destroid to build a hicking trail, would you install signs to draw attention to geological features - hidden under rubbish, would you promote teaching of science in school?

The Italian science foundation - Consiglio Nazionale delle Ricerche (CNR) decided to promote, funding and publish a book about a workshop hold in February 2009 about the scientific demise of evolution, with the same contributors of this second congress (November 2009):

"The Scientific Impossibility of Evolution"

Dominique Tassot: Introduction
Guy Berthault: Experiments in Stratification do not support the Theory of Evolution
Thomas Seiler: The Second Law of Thermodynamics and Evolution
Josef Holzschuh: Recent C-14 Dating of Megafauna and Dinosaur Fossil Collagen
Jean de Pontcharra: Are Radio-dating Methods reliable?
Maciej Giertych: Impact of Research on Race Formation and Mutations on the Theory of Evolution

What would you do ?

What would Mr. Deity say?

Dating catastrophes

Methods for dating mass-movement events earthquakes, volcanic eruptions and other geological hazards comprise a wide range of methods, historic, radiometric, stratigraphic and biological. For example Carbon-14 dating, applicable when the moving mass incorporated vegetation, or other radioactive elements that decay with time, surface dating of freshly exposed boulders by cosmogenic isotopes, dating of sediments by thermoluminescence, dendrochronology or lichenometry and for historic times written records or witness accounts.

Historical references are the most reliable sources for reconstructing the temporal distribution of catastrophes, especially for the last few centuries. Going further back in time, medieval time and antiquity ,the record gets poorer and more inexact. And for prehistoric time we miss descriptions of this kinds, or did we?

Considering (pre-)historic events, the oral tradition and legends all over world maybe represent first efforts to record and explain such phenomena, even if we have to be cautious, myths in geology can only be a supplementary help, not a fact, and much is left by the interpretation of stories by the compiler. Nevertheless knowing some old stories about the landscape can not be so bad for a geologist.

In the area of Seattle, Washington, at least five sites with landslide deposits or large boulders are known by local legends of the Duwamish people to be haunted by a´yahos. A´yahos are spirits with the body of a serpent and the antlers and forelegs of a deer. Old folks used to say not to look directly to an a´yahos because it could shake the ground or turn people to stone.

Non-Salish Cascadia Native representation of two -headed snakes, likely to represent spirits comparable with a´yahous. Quileute ceremonial representation of t´abale, a vicious guardian spirit on the northwestern Washington coast (from LUDWIN et al. 2007).

In 1990s geophysical investigations revealed that the area of Seattle is passed by a fault system and at least 1100 years ago an earthquake hit the entire zone- triggering mass movement all over the landscape.

Reconstructed "events" by means of oral tradition and mythological conventions.
Date range estimates used the following assumptions: a 'generation' is no fewer than 15 and no more than 40 years, events before age 5 are not remembered. the maximum lifespan is 100 years, flood survivors were 'old' when seen. and an 'old' person is at least 40. (from LUDWIN et al. 2007).

The bay of Lituya situated in Alaska is a narrow, only 2 kilometres broad, but 11 long bay open to the Pacific Ocean. The native Tlingit Indians tell that in a cavern, deep underground, lives a demon, similar in appearance to a great toad or frog. If someone dares to disturb the tranquillity of the bay, the demon will rip apart the sea and the earth and catch the intruder and transmute him to a bear.

Behind the anger of demons maybe an exceptional (yet undated) geological event hides, as a recent example shows:
On the 9th July 1958 an earthquake produced by a fault nearby triggered a rockfall, with an estimated volume of 40 million cubic metres and a weight of 90 million tons that felt from a height of 1000m in the water. The resulting wave reached a height of 524, the highest ever (human-) documented wave.

The Yurok Indians, once native in the Cascade Range, tell about the creation of the world by "earthquake" and "thunder":

And from there, earthquakes and thunder went south. They first went to the south and let fall the ground. In rapid succession, there was an earthquake and another earthquake, and then the water filled the place. "This is what brings people to live", said earthquake. "They would have no food, if there were not place for the creatures of the sea, to live in it. From here, they will obtain what they need to live, where prairie has become water."

During excavation in today's marshes along the coast of the region a series of sand and peat layers was discovered. Such deposits are formed when the coast is flooded by a tsunami, and sand is deposited, overlying an ancient soil. The discovery proves that this area in the past has been repeatedly devastated by tsunamis.

References:

FRITZ, H.M., HAGER, W.H., MINOR, H-E. (2001): Lituya Bay Case: Rockslide impact and wave run-up. - Science of Tsunami Hazards 19(1), 3-38.
LUDWIN, R.S. & SMITS, G.J. (2007): Folklore and earthquakes: Native American oral traditions from Cascadia compared with written traditions from Japan. From PICCARDI, L. & MASSE, W.B: (eds): Myth and Geology. Geological Society, London, Special Publications, 273: 67-94
LANG, A.; MOYA, J.; COROMINAS, J.; SCHROTT, L. & DIKAU, R. (1999): Classic and new dating methods for assessing the temporal occurrence of mass movements. Geomorphology 30:33-52