Cultural responses to natural changes such as climate change
Aborigènes ; Adaptation ; Amérique du Nord ; Changement climatique ; Culturel ; Système de valeurs ; Vulnérabilité
Aborigines ; Adaptation ; Climatic change ; Cultural studies ; North America ; Value system ; Vulnerability
Face à la vulnérabilité causée par ces changements, la question du rôle des facteurs culturels n'est pas assez abordée. Il faudrait clarifier comment croyances, valeurs, pratiques et habitudes sont en interaction avec les comportements des individus
et des groupes qui affrontent les défis posés par les effets du changement climatique. Exemple des perspectives culturelles des croyances des peuples indigènes du Nord-Ouest de l'Amérique du Nord.
Atmospheric circulation ; Climatic variability ; Climatic warming ; England ; Global change ; Model ; Synoptic climatology ; Temperature ; United Kingdom
This paper investigates the likely changes in the thermal climate of the Pennine region that would be associated with different climate change scenarios. Estimates of future temperature change are converted into attendant changes in climatic
Polarities of structure and change in urban systems : a Canadian example
Canada ; Changement urbain ; Croissance urbaine ; Fonction urbaine ; Hiérarchie urbaine ; Métropole ; Système urbain
Canada ; Large city ; Urban change ; Urban function ; Urban growth ; Urban hierarchy ; Urban system
The paper examines some of the contradictory assertions in the research literature regarding the on-going reorganization of urban systems through a detailed empirical analysis of the changing properties of the Canadian urban system. The analysis
begins with a conceptual framework that recognizes alternative logics and trajectories of change in urban systems. The paper demonstrates the diversity and rapidity of change, and the indeterminant and contradictory nature of many of the relationships
Arid area ; Bibliography ; Dating ; Desertification ; Forecast ; Geomorphology ; Global change ; Model ; Palaeo-environment ; Research ; Thermoluminescence ; Years 2000-2009
changes : chronologies of arid landscape development (luminescence dating); 2) assessing present changes : the relationship between modelling and field observations; 3) predicting future changes : arid landscape response to twenty-first-century
Analyse coût-avantage ; Changement climatique ; Changement global ; Combustible ; Croissance démographique ; Ethique ; Utilisation du sol
Climatic change ; Cost-benefit analysis ; Ethics ; Fuel ; Global change ; Land use ; Population growth
Changements à long terme et sur une grande échelle de la société humaine. Croissance de la population humaine. Utilisation du sol et production primaire. L'âge des combustibles fossiles. Le changement climatique. Penser comme une montagne. Penser
Arid area ; Climatic change ; Climatic warming ; Desert ; Forecast ; Global change ; Model ; Palaeo-ecology ; Palaeo-environment ; Quaternary ; Scenario
Arid regions are expected to undergo significant changes under a scenario of climate warming, but there is considerable variability and uncertainty in these estimates between different scenarios. The A. discusses the results of palaeoecological
reconstructions and model scenarios for 4 major arid regions (the Saharo-Arabian, Australian, Turanian and the US deserts and semi-deserts). Although palaeodata provide valuable information about possible past changes in the vegetation-climate system
Land use change and its corresponding ecological responses : a review
Providing a scientific understanding of the process of land use change, the impacts of different land use decisions, and the ways that decisions are affected by a changing environment and increasing ecological variability are the priority areas
for research : explanation of scale dependency of drivers of land use change; quantification of driving factors of land use change; incorporation of biophysical feedbacks in land use change models; and underlying processes and mechanisms of ecological impacts
Hypotheses and inferences concerning the nature of abrupt climate change, exemplified by the Dansgaard-Oeschger (D-O) events, are reviewed. There is little concrete evidence that these events are more than a regional Greenland phenomenon
. The partial coherence of ice core δO 18 and CH4 is a possible exception. A likely scenario is that changes in the ocean circulation are a consequence of wind shifts. The disappearance of D-O events in the Holocene coincides with the diappearance also
Should Quaternary sea-level changes be used to correct glacier ELAs, vegetation belt altitudes and sea level temperatures for inferring climate changes ?
Changes in the altitudes of glacier snowlines (ELAs) and the altitudes of montane vegetation belts (VBAs) measure Quaternary climatic change. Here, the A. shows that a recently proposed correction for these and other similar approaches is faulty
Climatic variation ; Environment ; Global change ; Holocene ; Human impact ; Ice core ; Impact ; Isotope analysis ; Landscape ; Perception ; Photography ; Pollen diagram ; Texas ; United States of America
This paper explores the commonly negative human reaction to environmental change. First, it assesses landscape change, defined specifically as the modification of land cover characteristics in the United States over the last couple of decades
. Second, the paper describes global change, the human modification of major natural processes, again largely over the previous several decades. Third, the paper portrays the writing of Texas naturalist Roy Bedichek as a more positive human response
This report will concentrate on aspects of Quaternary sea-level change, summaries of trends in sea-level over recent decades from tide gauges, and predictions of future sea-level change and the anticipated responses of the coast.
Changement global ; Dynamique littorale ; Foraminifère ; Indicateur ; Littoral ; Marais ; Niveau marin ; Quaternaire
Bog ; Coastal dynamics ; Coastal environment ; Foraminifera ; Global change ; Indicator ; Quaternary ; Sea level
This report examines recent developments in relation to present (and anticipated future) sea level, Quaternary sea-level fluctuations, the response of coastal landforms to sea-level change and the use of biological indicators of sea-level change.