Sentences with phrase «earth over millions of years»

Perhaps no surplus carbon sink exists at all to absorb the emissions caused by burning of fossil fuels accumulated in the earth over millions of years.
As Lawson explains, Darwin was fascinated by Charles Lyell's theory that geologic forces had shaped Earth over millions of years.

Not exact matches

That trees were created already decades old, with existing tree rings demonstrating their age; that dinosaur bones were placed in the Earth already millions of years old; canyons were created with layers of sedimentary rock AS IF they had been carved out by water over eons, etc..
There are so many contradictions in the bible, not only to what science has proven... (Adam was not created first and given dominion over the creatures of the earth as Genesis states) Dinosaurs inhabited earth for millions of years, millions of years before the first bipeds roamed.
Indeed, there is very little correlation between the estimates of CO2 and of the earth's temperature over the past 550 million years (the «Phanerozoic» period).
Remarkable and significant as is the emergence of self - conscious persons by natural processes from the original «hot big bang» from which the universe has expanded over the last 10 - 20 thousand million years, this must not be allowed to obscure another fact about humanity, namely its relatively recent arrival in the universe, even on a time - scale of the history of the Earth.
Earth itself would not support most of the life on this planet... enter the cytoplasm, which over many million years, slowly changed the atmosphere into one that was oxygen rich.
TV and radio preachers trumpet the details of prophecy belief over hundreds of stations and cable networks Hal Lindsey's The Late Great Planet Earth sold 9 million copies within eight years of its publication in 1970.
These ancient ones populated Mars with life and eventually, due to asteroid events over millions of years, life arrived here on Earth.
«If the earth formed over four billion years ago, all helium should have escaped from zircons, yet the crystals are loaded with this element» «The atmosphere should be full of helium atoms, the byproducts of millions of years of radioisotope decay, but it isn't.»
Feb. 13, 2013 — The greatest battle in Earth's history has been going on for hundreds of millions of years - it isn't over yet - and until now no one knew it existed, scientists reported Feb. 13 in the journal Nature.
Feb. 13, 2013 — The greatest battle in Earth's history has been going on for hundreds of millions of years — it isn't over yet — and until now no one knew it existed, scientists reported Feb. 13 in the journal Nature.
This is how you get creatures like the Star - Nosed Mole that have «mutated» over thousands, millions of years to what we see now that can survive and pass on their genetics to the next generation to survive in the earth.
As these life forms established themselves over some hundreds of millions of years, the luxuriant foliage formed layer after layer of organic matter, which was then buried in the crust of the earth to become fossil formations with enormous amounts of stored energy.
Scientific studies of global warming talk about the variation of the earths temperature over millions of years — oops.
Researchers from the Niels Bohr Institute have analysed the natural climate variations over the last 12,000 years, during which we have had a warm interglacial period and they have looked back 5 million years to see the major features of the Earth's climate.
Over a million years, the Tesla has a 6 % probability of an Earth collision and a 2.5 % chance of crashing on Venus, the researchers reported yesterday on the physics preprint server arXiv.
Earth formed from a series of smaller planetesimals that crashed together over the course of 30 million to 40 million years.
The tremendous amounts of lava that are emitted during super-eruptions accumulate over millions of years prior to the event in the Earth's crust.
But the description also matches Earth a little over 3 million years ago, in the middle of the geologic epoch known as the Pliocene.
«If the moon was the result of a long series of impacts from objects each about a hundredth to a tenth of Earth's mass, over tens of millions of years, then why do Mars and Venus not have similar moons?»
But to study Earth's history over tens to hundreds of millions of years, researchers examine the chemical and biological signatures of deep sea sediment archives.
Doing the next best thing to taking the temperature of a Tyrannosaurus rex, a pair of scientists in the US have calculated how heat was distributed over the body of the creature when it was roaming the Earth 67 million years ago.
Sixty - five million years ago, clouds of ash choked the skies over Earth.
Two new studies indicate that at least some of the 2 million cubic kilometres of lava which spread over parts of Siberia 250 million years ago came from the lower mantle, up to 2900 kilometres below the Earth's surface, and a small fraction may even have come from the core itself.
Over hundreds of millions of years, enormous plates of Earth's crust have drifted together and then apart.
Led by a PhD candidate at the University of Sydney's School of Geosciences, researchers used the Southern Hemisphere's most highly integrated supercomputer to reveal flow patterns deep in the Earth's mantle — just above the core — over the past 100 million years.
«When we look at the present day, we have a very high fidelity timeline over the last about 500 million years of what's happened on Earth, and we have a pretty good understanding that plate tectonics and volcanism and all these kinds of processes have happened more or less the same way over the last couple of billion years,» says Lindy Elkins - Tanton, director of the School of Earth and Space Exploration at Arizona State University.
Terrestrial planet formation models indicate Earth went through a sequence of major growth phases: accretion of planetesimals and planetary embryos over many tens of millions of years; a giant impact that led to the formation of our Moon; and then the late bombardment, when giant asteroids, dwarfing the one that presumably killed the dinosaurs, periodically hit ancient Earth.
Using Australia's National Computational Infrastructure's supercomputer Raijin, the team created high - resolution three - dimensional simulations of mantle evolution over the past 200 million years to understand the coupling between convection in the deep Earth and volcanism.
The Earth's crust in that part of the world is slowly moving northwest, he explained, and 40 million years ago, parts of Greenland passed over an especially hot column of partially molten rock that now lies beneath Iceland.
This was 1972,» 73, and plate tectonics [the theory, now verified, that sections of the earth's crust shift around over millions of years] was just coming along.
Over the course of about 100 million years, most of the material in that nebulous cloud accreted into the existing eight planets — four rocky (including Earth) and four gaseous.
By studying the fossilized teeth of rodents from over a span of 22 million years, Jan van Dam of Utrecht University and his colleagues found that rodent species rise and fall in cycles that closely match variations in Earth's orbit.
Over many millions of years, he explains, Earth has undergone repeated environmental cataclysms.
The research from Berke, assistant professor in the Department of Civil and Environmental Engineering and Earth Sciences at the University of Notre Dame and Environmental Change Initiative affiliate, suggests that Africa has gradually become wetter over the past 1.3 million years — instead of drier as was thought previously.
«If all of the Earth's water is on the surface, that gives us one interpretation of the water cycle, where we can think of water cycling from oceans into the atmosphere and into the groundwater over millions of years,» she said.
Earth's crust in that part of the world is slowly moving northwest, he explained, and 40 million years ago, parts of Greenland passed over an especially hot column of partially molten rock that now lies beneath Iceland.
Over the past 65 million years — as the earth froze, thawed, flooded, and dried — mammals spread to every continent and became big names on the stage of life.
But the spectrometer scrutinizes pristine cosmic rays — some of which have traveled undisturbed over millions of light - years — from its perch some 400 kilometers above Earth.
The three ancient Yellowstone supervolcano eruptions were only the latest in a series of more than 140 as the North American plate of Earth's crust and upper mantle moved southwest over the Yellowstone hotspot, starting 17 million years ago at the Oregon - Idaho - Nevada border.
Three nature museums in Frankfurt, Görlitz and Dresden display the diversity of life and the earth's development over millions of years.
After over three billion years of evolution in the oceans, multi-cellular life — beginning with green algae, fungi, and plants (liverworts, mosses, ferns, then vascular and flowering plants)-- began adapting to land habitats by creating a new «hypersea,» and adding anomalous shades of green to Earth's coloration more than 472 million years ago (Matt Walker, BBC News, October 12, 2010; and Qiu et al, 1998 — more on the evolution of photosynthetic life and plants on Earth).
Plants are major contributors to the chemical weathering of continental rocks, a key process in the carbon cycle that regulates Earth's atmosphere and climate over millions of years.
«This FRB, like others detected, is thought to originate from outside of Earth's own Milky Way galaxy, which means their signal has travelled over many hundreds of millions of light years, through a medium that — while invisible to our eyes — can be turbulent and affected by magnetic fields,» Ryan Shannon from Australia's ICRAR - Curtin University, the co-lead author of a study detailing the observation, said in a statement.
In fact, it is thought this is the major process which, over millions of years, cools Earth after a major heating period.
The nature museums in Frankfurt, Görlitz and Dresden display the diversity of life and the earth's development over millions of years.
Though rarefied by Earth standards, interstellar clouds like this one can enable complex chemical reactions over time scales of hundreds - of - thousands or even millions of years.
«Though very rarefied by Earth standards, these interstellar clouds are the sites of complex chemical reactions that occur over hundreds - of - thousands or millions of years,» said Jan M. Hollis of the NASA Goddard Space Flight Center in Greenbelt, Md. «Over time, more and more complex molecules can be formed in these cloover hundreds - of - thousands or millions of years,» said Jan M. Hollis of the NASA Goddard Space Flight Center in Greenbelt, Md. «Over time, more and more complex molecules can be formed in these cloOver time, more and more complex molecules can be formed in these clouds.
Processes that have historically altered the face of the planet, like cycles in the Earth's orbit around the Sun or shifts in continental tectonic plates, occur over tens of thousands to millions of years.
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