Now showing items 46-65 of 350

  • Centennial climate variability in the British Isles during the mid-late Holocene 

    Charman, Dan J. (Elsevier, 2010-06)
    Multi-millennial climate changes were relatively minor over the mid–late Holocene in the British Isles, because orbitally forced insolation changes were smaller than those at higher latitudes. Centennial climate variability ...
  • Century-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate 

    Cornford, Stephen Leslie; Martin, DF; Payne, AJ; Ng, EG; Le Brocq, A.M.; Gladstone, RM; Edwards, TL; Shannon, SR; Agosta, C; Van Den Broeke, MR; Hellmer, HH; Krinner, G; Ligtenberg, SRM; Timmermann, R; Vaughan, DG (Copernicus GmbH, 2015-08-18)
    We use the BISICLES adaptive mesh ice sheet model to carry out one, two, and three century simulations of the fast-flowing ice streams of the West Antarctic Ice Sheet, deploying sub-kilometer resolution around the grounding ...
  • Challenging the 'view from nowhere': citizen reflections on specialist expertise in a deliberative process. 

    Davies, Gail; Burgess, J (Elsevier, 2004-12)
    This paper presents analysis of citizen encounters with specialists in a deliberative process, called Deliberative Mapping, which explored options for addressing the shortage of organs for transplantation in the UK. There ...
  • Changes in hydrology and erosion over a transition from grassland to shrubland 

    Turnbull, Laura; Wainwright, John; Brazier, Richard E. (Wiley-Blackwell, 2010-02-15)
    The degradation of grasslands is a common problem across semi-arid areas worldwide. Over the last 150 years, much of the south-western United States has experienced significant land degradation, with desert grasslands ...
  • Changing dynamics of Caribbean reef carbonate budgets: emergence of reef bioeroders as critical controls on present and future reef growth potential 

    Perry, Chris T.; Steneck, Robert S.; Murphy, Gary N.; Kench, Paul S.; Edinger, Evan N.; Smithers, Scott G.; Mumby, Peter J. (Royal Society, 2014-10-15)
    Coral cover has declined rapidly on Caribbean reefs since the early 1980s, reducing carbonate production and reef growth. Using a cross-regional dataset, we show that widespread reductions in bioerosion rates—a key carbonate ...
  • Changing tectonic controls on the long-term carbon cycle from Mesozoic to present 

    Mills, Benjamin; Daines, Stuart; Lenton, Timothy M. (Wiley/AGU, 2014-12-17)
    Tectonic drivers of degassing and weathering processes are key long-term controls on atmos- pheric CO2. However, there is considerable debate over the changing relative importance of different car- bon sources and sinks. ...
  • Changing UK river temperatures and their impact on fish populations 

    Webb, B.W.; Walsh, A.J. (British Hydrological Society, 2004)
  • Chronologies for recent peat deposits using wiggle-matched radiocarbon ages: problems with old carbon contamination 

    Charman, Dan J.; Garnett, Mark H. (University of Arizona, 2005)
    Dating sediments which have accumulated over the last few hundred years is critical to the calibration of longer-term paleoclimate records with instrumental climate data. We attempted to use wiggle-matched radiocarbon ages ...
  • Civic geographies: pictures and other things at an exhibition 

    Philo, C.; Askins, Kye; Cook, Ian (University of British Columbia, Okanagan, 2015)
    This paper introduces an Interventions theme section of ACME exploring the possibilities raised by the notion of ‘civic geographies’, inquiring what it might mean to rework an older, sometimes conservative and even reactionary ...
  • Climate and security: Evidence, emerging risks, and a new agenda 

    Gemenne, F; Barnett, J; Adger, W. Neil; Dabelko, GD (Springer Verlag (Germany), 2014-02-22)
    There are diverse linkages between climate change and security including risks of conflict, national security concerns, critical national infrastructure, geo-political rivalries and threats to human security. We review ...
  • Climate change and the British Uplands: evidence for decision-making 

    House, JI; Orr, Harriet G.; Clark, Joanna M.; Gallego-Sala, Angela V.; Freeman, Chris; Prentice, I. Colin; Smith, Pete (Inter Research, 2010)
    We summarise the work of an interdisciplinary network set up to explore the impacts of climate change in the British Uplands. In this CR Special, the contributors present the state of knowledge and this introduction ...
  • Climate change and visual imagery 

    O'Neill, SJ; Smith, N (Royal Meteorological Society / Royal Geographical Society / Wiley, 2014-02)
    Many actors—including scientists, journalists, artists, and campaigning organizations—create visualizations of climate change. In doing so, they evoke climate change in particular ways, and make the issue meaningful in ...
  • Climate drivers for peatland palaeoclimate records 

    Charman, Dan J.; Barber, Keith E.; Blaauw, Maarten; Langdon, Pete G.; Mauquoy, Dmitri; Daley, Tim J.; Hughes, Paul D.M.; Karofeld, Edgar (Elsevier Ltd, 2009-09)
    Reconstruction of hydroclimate variability is an important part of understanding natural climate change on decadal to millennial timescales. Peatland records reconstruct ‘bog surface wetness’ (BSW) changes, but it is unclear ...
  • Climate-driven expansion of blanket bogs in Britain during the Holocene 

    Gallego-Sala, Angela V.; Charman, Dan J.; Harrison, Sandy; Li, G; Prentice, I. Colin (European Geosciences Union/ Copernicus, 2015-10-12)
    Blanket bog occupies approximately 6 % of the area of the UK today. The Holocene expansion of this hyperoceanic biome has previously been explained as a consequence of Neolithic forest clearance. However, the present ...
  • Climate-related changes in peatland carbon accumulation during the last millennium 

    Charman, Dan J.; Beilman, DW; Blaauw, Maarten; Booth, RK; Brewer, S; Chambers, FM; Christen, JA; Gallego-Sala, Angela V.; Harrison, Sandy; Hughes, PDM; Jackson, ST; Korhola, A; Mauquoy, Dmitri; Mitchell, FJG; Prentice, I. Colin; Van Der Linden, M; De Vleeschouwer, F; Yu, ZC; Alm, J; Bauer, IE; Corish, YMC; Garneau, M; Hohl, V; Huang, Y; Karofeld, E; Le Roux, G; Loisel, J; Moschen, R; Nichols, JE; Nieminen, TM; MacDonald, Glen M.; Phadtare, NR; Rausch, N; Sillasoo, U; Swindles, GT; Tuittila, E-S; Ukonmaanaho, L; Väliranta, M; Van Bellen, S; Van Geel, B; Vitt, DH; Zhao, Y (European Geosciences Union (EGU), 2013)
    Peatlands are a major terrestrial carbon store and a persistent natural carbon sink during the Holocene, but there is considerable uncertainty over the fate of peatland carbon in a changing climate. It is generally assumed ...
  • Co-evolution of eukaryotes and ocean oxygenation in the Neoproterozoic era 

    Lenton, Timothy M.; Boyle, Richard A.; Poulton, SW; Shields-Zhou, GA; Butterfield, NJ (Nature Publishing Group, 2014-03-09)
    The Neoproterozoic era (about 1,000 to 542 million years ago) was a time of turbulent environmental change. Large fluctuations in the carbon cycle were associated with at least two severe — possible Snowball Earth — ...
  • Comment on 'A first map of tropical Africa's above-ground biomass derived from satellite imagery' 

    Mitchard, ETA; Saatchi, SS; Lewis, Simon L.; Feldpausch, T.R.; Gerard, FF; Woodhouse, IH; Meir, P (Institute of Physics, 2011)
    We present a critical evaluation of the above-ground biomass (AGB) map of Africa published in this journal by Baccini et al (2008 Environ. Res. Lett. 3 045011). We first test their map against an independent dataset of ...
  • A conceptual framework for understanding semi-arid land degradation: ecohydrological interactions across multiple-space and time scales 

    Turnbull, L; Wainwright, J; Brazier, Richard E. (Wiley-Blackwell, 2008-04)
    Land degradation is a problem prolific across semi-arid areas worldwide. Despite being a complex process including both biotic and abiotic elements, previous attempts to understand ecosystem dynamics have largely been ...
  • Constructed landscapes and social memory: tales of St Samson in early medieval Cornwall 

    Harvey, David (Pion Ltd, 2002)
    In this paper I consider the historical geography of place and space within the context of medieval Britain. Through examining the geography invoked within a particular hagiographic account about the life of St Samson, I ...
  • Continuity, authority and the place of heritage in the Medieval world 

    Harvey, David (Elsevier Science, 2000-01)
    This essay supports the contention that knowledge of the past should be seen as a political resource. Furthermore, the interpretation of a particular version of the past is related to power differentiation and the ...