Nature Geoscience contents: September 2014 Volume 7 Number 9 pp613-688

If you are unable to see the message below, click here to view.

TABLE OF CONTENTS September 2014 Volume 7, Issue 9 Editorial Commentary News and Views Review Letters Article Corrigendum Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature has once again been ranked the N0.1 weekly science journal with an Impact Factor of 42.351*. To celebrate we are offering you the opportunity to subscribe at an exclusive limited time offer of only $42, £42 or €42. This is a limited time offer - so don't miss out and subscribe today! *2013 Journal Citation Reports® (Thomson Reuters, 2014)     Editorial Top Journal-to-journal shortcuts   p613 doi:10.1038/ngeo2246 At Nature Publishing Group we offer a transfer system that allows authors to move papers between our journals at the click of a button if their first-choice journal declined. We encourage authors to use that service. Commentary Top Wedge approach to water stress   pp615 - 617 Yoshihide Wada, Tom Gleeson & Laurent Esnault doi:10.1038/ngeo2241 Water availability and use are inherently regional concerns. However, a global-scale approach to evaluating strategies to reduce water stress can help maximize mitigation. News and Views Top Aerosols: The colour of smoke   pp619 - 620 Nicolas Bellouin doi:10.1038/ngeo2226 Particles of smoke from natural and human-made fires absorb sunlight and contribute to global warming. Laboratory experiments suggest that smoke is often more absorbing than current numerical models of global climate assume. See also: Letter by Saleh et al. Biogeochemistry: Oxygen burrowed away   pp620 - 621 Filip J. R. Meysman doi:10.1038/ngeo2218 Multicellular animals probably evolved at the seafloor after a rise in oceanic oxygen levels. Biogeochemical model simulations suggest that as these animals started to rework the seafloor, they triggered a negative feedback that reduced global oxygen. See also: Letter by Boyle et al. Deep earth: Post-perovskite at ten   pp621 - 623 Sang-Heon Shim & Thorne Lay doi:10.1038/ngeo2237 In 2004, a phase transition was discovered in the most abundant lower-mantle mineral. A decade of focused experiments, computations and seismic imaging stimulated by this discovery has revealed previously unknown complexities in Earth's deep mantle. Carbon sequestration: Tiny potential   p623 Amy Whitchurch doi:10.1038/ngeo2242 Geomorphology: An ephemeral gorge   pp624 - 625 Leonard S. Sklar doi:10.1038/ngeo2235 The topography of the Earth's surface can be read as an archive of past climatic and tectonic upheavals. Field data reveal how a bedrock gorge may be erased within a human lifetime, taking with it the evidence of a major earthquake. See also: Article by Cook et al. Seafloor methane: Atlantic bubble bath   pp625 - 626 John Kessler doi:10.1038/ngeo2238 The release of large quantities of methane from ocean sediments might affect global climate change. The discovery of expansive methane seeps along the US Atlantic margin provides an ideal test bed for such a marine methane–climate connection. See also: Letter by Skarke et al. Geoscience EVENT Feedbacks on Climate in the Earth System 08.12.14 London, UK More science events from Review Top Recent Arctic amplification and extreme mid–latitude weather   pp627 - 637 Judah Cohen, James A. Screen, Jason C. Furtado, Mathew Barlow, David Whittleston et al. doi:10.1038/ngeo2234 The Arctic has warmed more than twice as fast as the global average. A literature synthesis discusses mechanisms how the associated decline in sea ice and snow cover could potentially alter mid-latitude weather, but uncertainties are profound. Letters Top Record of the ancient martian hydrosphere and atmosphere preserved in zircon from a martian meteorite   pp638 - 642 A. A. Nemchin, M. Humayun, M. J. Whitehouse, R. H. Hewins, J-P. Lorand et al. doi:10.1038/ngeo2231 How the atmosphere, hydrosphere and surface materials interacted on early Mars is poorly understood. Oxygen isotopic composition of zircon grains in a martian meteorite reveals a prolonged history of exchange between martian regolith and atmosphere. Satellite-based estimate of global aerosol–cloud radiative forcing by marine warm clouds   pp643 - 646 Yi-Chun Chen, Matthew W. Christensen, Graeme L. Stephens & John H. Seinfeld doi:10.1038/ngeo2214 The levels of aerosols in the atmosphere affect cloud reflectivity and the Earth's radiative balance. A comprehensive analysis of satellite observations shows that thermodynamics and precipitation govern cloud responses to aerosols. Brownness of organics in aerosols from biomass burning linked to their black carbon content   pp647 - 650 Rawad Saleh, Ellis S. Robinson, Daniel S. Tkacik, Adam T. Ahern, Shang Liu et al. doi:10.1038/ngeo2220 Atmospheric aerosols can exert an important influence on Earth's climate. Combustion chamber experiments reveal that the absorption properties of brown carbon aerosols from biomass burning are linked to their black carbon content. See also: News and Views by Bellouin Natural variability, radiative forcing and climate response in the recent hiatus reconciled   pp651 - 656 Markus Huber & Reto Knutti doi:10.1038/ngeo2228 Global mean surface warming has been slow over the past 15 years. An analysis of climate simulations suggests that the low warming rate can be explained by an unusual phase of El Nino/Southern Oscillation and solar and aerosol variability. Widespread methane leakage from the sea floor on the northern US Atlantic margin   pp657 - 661 A. Skarke, C. Ruppel, M. Kodis, D. Brothers & E. Lobecker doi:10.1038/ngeo2232 Methane emissions from the sea floor affect ocean chemistry and can reach the atmosphere. Observations from the northern US Atlantic margin reveal about 570 gas plumes at water depths between 50 and 1,700 m. See also: News and Views by Kessler Persistent link between solar activity and Greenland climate during the Last Glacial Maximum   pp662 - 666 Florian Adolphi, Raimund Muscheler, Anders Svensson, Ala Aldahan, Göran Possnert et al. doi:10.1038/ngeo2225 Variations in solar activity have been linked to centennial to decadal-scale interglacial climate fluctuations. A 10Be-based reconstruction of solar activity from the Last Glacial Maximum indicates a similar Sun–climate link operated during glacial conditions. Resilience of Pacific pelagic fish across the Cretaceous/Palaeogene mass extinction   pp667 - 670 Elizabeth C. Sibert, Pincelli M. Hull & Richard D. Norris doi:10.1038/ngeo2227 The Cretaceous/Palaeogene mass extinction caused ecosystem upheaval. Fish abundance data from the Tethys Sea and the Pacific Ocean indicate heterogeneity in the extinction and recovery, with greater resilience in the Pacific. Stabilization of the coupled oxygen and phosphorus cycles by the evolution of bioturbation   pp671 - 676 R. A. Boyle, T. W. Dahl, A. W. Dale, G. A. Shields-Zhou, M. Zhu et al. doi:10.1038/ngeo2213 Increased oxygen availability in the Cambrian oceans supported the evolution of animals that mixed the seafloor sediments. Numerical modelling suggests the development of a feedback loop between bioturbation, phosphorus burial and oxygen levels. See also: News and Views by Meysman Antarctic icequakes triggered by the 2010 Maule earthquake in Chile   pp677 - 681 Zhigang Peng, Jacob I. Walter, Richard C. Aster, Andrew Nyblade, Douglas A. Wiens et al. doi:10.1038/ngeo2212 Large earthquakes can trigger seismicity in remote regions. Analysis of seismic data from Antarctica reveals ice quakes coincident with passing seismic waves from the 2010 Chile earthquake, suggesting that the ice sheet is sensitive to such triggers. Article Top River gorge eradication by downstream sweep erosion   pp682 - 686 Kristen L. Cook, Jens M. Turowski & Niels Hovius doi:10.1038/ngeo2224 Narrow river gorges are often short-lived features. Images of a bedrock gorge in Taiwan, which was carved after 1999, reveal rapid widening where the upstream floodplain meets the gorge, an erosional front that propagates downstream as the gorge is erased. See also: News and Views by Sklar Corrigendum Top Corrigendum: Lusi mud eruption triggered by geometric focusing of seismic waves   pp687 - 688 M. Lupi, E. H. Saenger, F. Fuchs & S. A. Miller doi:10.1038/ngeo2239 Top Advertisement Interested in plant science? Launching in January 2015, Nature Plants will provide an overview of the most important developments in plant sciences through the publication of Primary Research, Reviews, Perspectives, News and Views articles, Commentaries, News Features and Books and Arts Reviews.  Register to receive Nature Plants e-alerts  Like us on Facebook  Follow us on Twitter   Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here. Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. For event advertising opportunities across the Nature Publishing Group portfolio please contact natureevents@nature.com More Nature Events

You have been sent this Table of Contents Alert because you have opted in to receive it. You can change or discontinue your e-mail alerts at any time, by modifying your preferences on your nature.com account at: www.nature.com/myaccount (You will need to log in to be recognised as a nature.com registrant) For further technical assistance, please contact our registration department For print subscription enquiries, please contact our subscription department For other enquiries, please contact our customer feedback department Nature Publishing Group | 75 Varick Street, 9th Floor | New York | NY 10013-1917 | USA Nature Publishing Group's worldwide offices: London - Paris - Munich - New Delhi - Tokyo - Melbourne San Diego - San Francisco - Washington - New York - Boston Macmillan Publishers Limited is a company incorporated in England and Wales under company number 785998 and whose registered office is located at Brunel Road, Houndmills, Basingstoke, Hampshire RG21 6XS. © 2014 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.