Sentences with phrase «thwaites palaeo»

And it also gives us hope that this is the start of many such collaborative palaeo - research projects between South Africa and Argentina that could yield more such remarkable discoveries.»

«Thus, both palaeo - anthropological and genetic evidence increasingly points to multiregional origins of anatomically modern humans in Africa, i.e. Homo sapiens did not originate in one place in Africa, but might have evolved from older forms in several places on the continent with gene flow between groups from different places,» says Carina Schlebusch.

This is the idea driving «palaeo» lifestyle fads, based on the premise that we'd be healthier if we lived more like our hunter - gatherer ancestors.

«It is an intriguing study but after examining one of these «injuries» I found it hard to rule out the possibility that this might have simply been the skull being chipped after death,» says Bruce Rothschild, a palaeo - osteopathologist at the University of Kansas in Lawrence.

The Palaeo - Anthropological Scientific Trust (PAST), launched with donations from mining giants Anglo American and De Beers, among others, hopes to attract regular funds from big business to support a range of activities, from excavations and exploration to the training of palaeo - anthropologists and encouragement of «archaeo - tourism» to South Africa's spectacular cave sites.

Yet palaeo - anthropological research in South Africa has always been starved of cash, attracting only around 1 per cent of the international funds spent on similar work in East Africa.

Similar figurines have also been dubbed «palaeo - porn».

Aren't other interpretations of palaeo - art just as speculative as calling them pornographic?

Its second name, buelli, honours the exceptional illustrations of extinct whales produced by palaeo - artist Carl Buell.

«It used to be just a pat answer that you could not get dense settlements of people living in complex social organisations without this productive crop,» says Deborah Pearsall, a palaeo - ethnobotanist at the University of Missouri.

GOING on the palaeo diet?

This session examined the biogeochemical processes that are likely to affect the evolution of the Earth system over the coming decades, with a focus on the dynamics of marine and terrestrial ecosystems and the development of improved understanding through (a) fieldwork and laboratory experiments, (b) development of new observational datasets, both modern and palaeo, and (c) simulations using numerical models.

A new paper by Levermann et al. in PNAS uses the record of past rates of sea level rise from palaeo archives and numerical computer models to understand how much sea level rise we can expect per degree of warming in the future.

Flow and retreat of the Late Quaternary Pine Island - Thwaites palaeo - ice stream, West Antarctica.

in Wallingford says he hopes the study will encourage more palaeo reconstructions to fill the gaps in the record:

At the Last Glacial Maximum, palaeo - ice streams extended to the shelf edge in West Antarctica and in the Antarctic Peninsula, but in East Antarctica they usually were restricted to the mid-outer shelf [44].

Mann suggests that differences between the palaeo record and model simulations are a result of shortcomings in the proxy data, not flaws in climate models, as he explains to Carbon Brief:

Other researchers look at raised beaches [32] and palaeo lakes to record previous rates of isostatic uplift and rates of sea level rise [33, 34]; this can help constrain previous ice volumes and rates of ice loss.

«[M] y own extensive work using these [palaeo] data has led me to the conclusion that they are not well suited for reconstructing past climate extremes.

The sediments can be compared to palaeo magnetostratigraphic data, and this can be used as a proxy age determination.

Older marine sediments can be dated using palaeo - magnetism.

Using simulations of the last millennium to understand climate variability seen in palaeo - observations: Similar variation of Iceland - Scotland overflow strength and Atlantic Multidecadal Oscillation.

Evidence for a palaeo - subglacial lake on the Antarctic continental shelf.

Hartwig and her husband Dallas give GN Focus a peep into the palaeo lifestyle.

Better yet, the iftar buffet seems almost geared to the palaeo diet, heavy as it is with kebabs and salads.

The surprising fact is that most restaurants can easily accommodate a palaeo diet.

What is palaeo ice sheet reconstruction and why do scientists spend so much time doing it?

The Sterkfontein Caves are a series of limestone caves 50 kilometres north west of Johannesburg that are not only the richest, but most productive palaeo - anthropological sites in the world.

From a palaeo perspective the Atlantic circulation seems to be pretty robust to changes in meltwater production.

This research relies on being able to determine palaeo - waterdepth of a saltmarsh very precisely, and here lies the rub.

Abrupt tropical cooling ~ 8,000 years ago «We drilled a sequence of exceptionally large, well - preserved Porites corals within an uplifted palaeo - reef in Alor, Indonesia, with Th - 230 ages spanning the period 8400 to 7600 calendar years before present (Figure 2).

And since both sets of rocks contained palaeo - magnetic evidence of the north and south poles» periodical reversals, researchers were able to calibrate the evidence and arrive at an accurate calendar of changing climate conditions, every 405 millennia.

``... the three researchers write that they «provide experimental support for suggestions and simulation studies predicting that reductions in CO2 alone could have led to loss of tree cover in grassy environments in the last glacial (Bond et al., 2003; Harrison and Prentice, 2003),» and they say that «the large increases in CO2 from industrial emissions over the last century would now favor trees at the expense of grasses,» which conclusion is supported by palaeo - records that indicate that «trees disappeared from current savanna sites in South Africa during the Last Glacial Maximum (Scott, 1999), re-appeared in the Holocene, and have rapidly increased over the last half century,»... Read More

At the end of Planet of the Apes (1960s version), when Charlton Heston in the year 3978 was about to discover the humanity had destroyed itself in nuclear war, all the palaeo - evidence pertaining to the human past was ordered to be destroyed by the bigwig academics of the day.

Gavin Schmidt's comment on RC to the effect that he didn't care what the temperature was 1000 years ago is sufficient to realise that defence of the Hockey Stick has been abandoned — palaeo reconstructions are now regarded as irrelevant

But what this also means is that palaeo climatology has to start all over again, from scratch and that is even before 1830 and the observations of Louis Agassiz about Ice ages.

Quantitative measurement of the sea ice diatom biomarker IP25 and sterols in Arctic sea ice and underlying sediments: further considerations for palaeo sea ice reconstruction.

Saying this does not make me an outlaw in the palaeo family — I hope!

Heating «cloud albedo effect» is a far better explanation of palaeo - climate than CO2 because the latter has a delay of 500-1500 years as oceans warm.

The other issue is palaeo - climate: you need warming other than Milankovitch effects to come out of ice ages at the required rate.

«On one side, Professor Bill Ruddiman carefully inspected and compared palaeo - environmental information about the di erent interglacial periods.

The palaeo climate record is an important part of the skeptic argument against climate alarmism, specifically the absence of clear evidence of CO2 causation of warming and regulation of or correlation with temperature on all time scales.

This insight, backed by the palaeo - climatic record (see Chapter 2, Section 2.4), is a new challenge for global change science because now thresholds have to be identified and their values need to be estimated using the entire hierarchy of climate models.

Shakhova and Nicolsky believe that the development of open taliks — unfrozen regions — in the permafrost at sites where thaw lakes and river palaeo valleys were submerged is enabling methane to escape.

A basic example would be sea level, it takes time to melt ice at a certain temperature, so therefore any measurement of palaeo - sea level would be offset from the period of warmth with which it is related, as the ice that would melt from such warmth would take a certain period of time to then effect the sea level (and then effect other proxies such as corals, and so on).

Incidentally, I'd still hold out hope for palaeo estimates of ECS also being a useful addition to the mix.

In a paper in Nature this week, scientists present palaeo - oceanographic evidence that deep convection of surface waters in the North Atlantic — the engine that keeps the AMOC in constant motion — began to decline as early as around 1850, probably owing to increased freshwater influx from Arctic ice that had melted at the end of a relatively cold period called the Little Ice Age (D. J. R. Thornalley et al..

The importance of such thaw - discontinuities can not be underplayed in a model of catastrophic devolatilisation (Shakhova, 2014), as illustrated by Mars where violent degassing equivalent to 20 Yamal explosions per km ² occurs through sub-mound palaeo - taliks alone (e.g., Figure above).

An index used in many climate change detection studies is global mean surface temperature, either as estimated from the instrumental record of the last 140 years, or from palaeo - reconstructions.

I consider that this new series (plus the illustration of the Western US series in the EOS) piece will «stimulate further discussion» in the field, both between we palaeo - types and the Sceptics.