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  • 1
    Electronic Resource
    Electronic Resource
    Palaeoclimatology Evidence for hot early oceans? (2007)
    [s.l.] : Nature Publishing Group
    Nature 447.2007, 7140, E1-, (1 S.) 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Arising from: F. Robert & M. Chaussidon Nature 443, 969–972 (2006); Robert & Chaussidon reply The oxygen isotopes in sedimentary cherts (siliceous sediments) have been used to argue that the Precambrian ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature05830
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  • 2
    Electronic Resource
    Electronic Resource
    Earth sciences Ups and downs of ancient oxygen (2006)
    [s.l.] : Nature Publishing Group
    Nature 443 (2006), S. 643-645 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The ancient rise of atmospheric oxygen is of great interest because of its close relationship with evolution, but the geological evidence for this is indirect and subject to interpretation. The consensus for more than 30 years has been that atmospheric oxygen first reached appreciable levels around ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/443643a
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  • 3
    Electronic Resource
    Electronic Resource
    Biogeochemistry The nitrogen fix (2001)
    [s.l.] : Nature Publishing Group
    Nature 412 (2001), S. 26-27 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To what extent is biological evolution driven by environmental evolution? This is one of the big questions for both evolutionary biologists and geoscientists. On page 61 of this issue, Navarro-González and colleagues describe their investigation into a central innovation in the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35083660
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  • 4
    Electronic Resource
    Electronic Resource
    Making Mars habitable (1991)
    [s.l.] : Nature Publishing Group
    Nature 352 (1991), S. 489-496 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Mars is believed to be lifeless, but it may be possible to transform it into a planet suitable for habitation by plants, and conceivably humans. The success of such an enterprise would depend on the abundance, distribution and form of materials on the planet that could provide carbon dioxide, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/352489a0
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  • 5
    Electronic Resource
    Electronic Resource
    New spin on ancient climate (1993)
    [s.l.] : Nature Publishing Group
    Nature 364 (1993), S. 759-760 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHY didn't the Earth freeze over in its infancy, when the Sun was fainter than it is today? This 'faint young Sun' problem has a number of proposed remedies1"3, high atmospheric concentrations of carbon dioxide being perhaps the most attractive2'4. Now Jenkins et al.5 have added another: reduced ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/364759a0
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  • 6
    Electronic Resource
    Electronic Resource
    Susceptibility of the early Earth to irreversible glaciation caused by carbon dioxide clouds (1992)
    [s.l.] : Nature Publishing Group
    Nature 359 (1992), S. 226-228 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the models of Budyko1 and Sellers2, a small reduction in solar luminosity results in the advance of ice and snow cover towards the Equator. This additional ice and snow reflects more solar radiation back to space and further cools the planet. If solar luminosity is reduced beyond some critical ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/359226a0
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of increased CO 2 concentrations on surface temperature of the early Earth (1983)
    [s.l.] : Nature Publishing Group
    Nature 301 (1983), S. 53-55 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A likely mechanism for warming the early Earth was the presence of one or more greenhouse gases in the --atmosphere in addition to water vapour. Sagan and Mllen3suggested that ammonia could have provided the necessary heating if present in concentrations of a few parts per million. However, even ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/301053a0
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  • 8
    Electronic Resource
    Electronic Resource
    Habitable moons around extrasolar giant planets (1997)
    [s.l.] : Nature Publishing Group
    Nature 385 (1997), S. 234-236 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Moons orbiting giant planets face additional problems that an isolated Earth-like planet would not encounter. At 1 AU from a solar-type star, all moons within a jovian planet's Hill sphere (the limit for orbital stability) would become tidally locked within a few billion years of their formation. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/385234a0
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  • 9
    Electronic Resource
    Electronic Resource
    Paradox lost and paradox foun (1992)
    [s.l.] : Nature Publishing Group
    Nature 355 (1992), S. 676-677 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the stepwise pursuit of the truth, scientific theories evolve and sometimes change direction. Rarely, however, do they come full circle in the way that palaeoclimate theory has done in the past few years. Twenty years ago, Sagan and Mullen1 pointed out an interesting puzzle in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/355676a0
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  • 10
    Electronic Resource
    Electronic Resource
    Palaeoclimatology Archaean atmosphere and climate (2004)
    [s.l.] : Nature Publishing Group
    Nature 432 (2004), S. 0 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Arising from: H. Ohmoto, Y. Watanabe & K. Kumazawa Nature 429, 395–399 (2004); see also communication from N. H. Sleep; H. Ohmoto & Y. Watanabe reply Ohmoto et al. argue that carbon ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature03166
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