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“An idea whose time has come!”: What is the role of physical geography in a dynamic world experiencing unprecedented changes?
The statement ‘An idea whose time has come!’ is an important statement. Physical geography assists us in how we examine our environment, land forms and weather patterns, to name a few, as well as how humans interact with the physical environment. However, to properly understand the continued importance of physical geography in the modern world, we must also examine the historical origins of physical geography and its ever-evolving trajectory. It is of much academic debate about whether or not the world is entering the Anthropocene age due to the human activity continually changing the physical environment. This essay will examine the origins of physical geography, how physical geography has developed over time, interrelationships between physical and human geography, whether or not we are entering Anthropocene era and the future of physical geography. It will also be argued within this essay that physical geography was and still is an important discipline that continues to have a relevance in the modern world and will continue to do so moving deeper into the twenty-first century.
The origins of physical geography
The origins of physical geography can be traced back thousands of years, back to the time of civilisations such as Ancient Greece. Many thousands of years ago, the very origins of physical and human geography existed under the banner of ‘geography’. In the case of the ancient Greeks, they linked the concept of geography to the study of the landscape and other natural features in the surrounding environment (Agnew and Livingstone 2011). Furthermore, people in Ancient Greece were required to have a deeper understanding of their physical surrounds as they required geographical understanding as to where to build their homes, plot trade routes and when to plant their crops (Agnew and Livingstone 2011). Agnew and Livingstone (2011) suggest that geography in Ancient Greece was also characterised by the use of various inquiries used by ancient geographers. Ancient Greece is only one of the many civilisations throughout the ancient world who interacted with geography (Geary 2011). Over many centuries, the field of geography was expanded upon by various civilisations, particularly throughout the medieval period and early modern era (Geary 2011).
How physical geography has developed over time
The later stages of the nineteenth and early twentieth centuries saw the very beginnings of physical geography as a discipline. This era is viewed as the ‘pre-1945 era’ (Tadaki, Salmond et al. 2012) or according to the American geographer Richard Aspinall, the ‘Formative era’, an era that lasted until the mid-1920s (Skaggs 2004 quoted in Aspinall 2010). According to (Tadaki, Salmond et al. 2012), there was an attempt by geographers to outline the exact content and trajectory that physical geography should take. Physical geography included a variety of approaches such as “Davis (1899) described and classiﬁed landscapes within a Cycle of Erosion, while Koppen (1900, cited in Heymann 2010) and others (e.g. Ward 1906) described and classiﬁed climatic biomes of the world” (Davis 1899; Koppen 1900; Ward 1906 as quoted in Tadaki, Salmond et al. 2012, 551). Further to this, there was a calling for a more “integrative physical geography which linked land and society, geomorphic enquiry continued to emphasise concerns for landscape development” (Davis 1902 as quoted in Kennedy 2006; quoted in Tadaki, Salmond et al. 2012, 551). Further developments during the pre-1945 period included the development of a third atmospheric dimension, the introduction of a process-based approached to physical geography, the proposal of ‘landscape meteorology’ and the introduction of ‘dynamic climatology’ (Tadaki, Salmond et al. 2012).
Conversely, this time period in the development of physical geography is viewed differently by American geographers and is known as the “formative era” (Skaggs 2004 quoted in Aspinall 2010, 1050). Aspinall (2010) argues that physical geographers dominated the Association of American Geographers in the early part of the twentieth century and they were primarily concerned with environmental determinism. Observation was the main tool used within environmental determinism but this was eventually deemed to seriously limit physical geographers in their approach to this theory (Aspinall 2010). American geographers would adopt process-based enquiry at a later time (Aspinall 2010).
To begin this paragraph, we must first examine the ‘formative era’ that began in roughly the mid-1920s and lasted until the end of World War Two (Aspinall 2010). According to Aspinall (2010) the theory of environmental determinism gave way to new approaches to the discipline. It is also mentioned that physical geography in the United States declined and it was instead argued that “geographers should not be engaged in explaining the origin, characteristics, and occurrence of landforms, soils, climate, and biota or their relations to one another” (Barrows 1923 as quoted in Aspinall 2010, 1051).
The post-war period of 1945-1970 brought further changes to the discipline of physical geography. The period after World War Two saw the “quantitative revolution in both geography and the earth sciences from the 1950s and 1960s onward gave new impetus and momentum to physical geography” (Gregory 2000 as cited in Aspinall 2010, p. 1052). Furthermore, this era examined how the various earth dynamics operated together and the establishment of a process approach to physical geography was also implemented (Aspinall 2010). The advances in technology, such as aerial photography “and systematic hydrological and geological surveying” allowed for physical geography to reach new heights as a discipline (Tadaki, Salmond et al. 2012, p. 552). Changes to climatology during this period included suggestions that it should use more mathematical and scientific laws towards its approaches and that meteorology had begun to become a dominant discipline into the study of the atmosphere (Tadaki, Salmond et al. 2012). Conversely, not all scientists and geographers were happy with the new direction of atmospheric research. Penman, who was a physicist and “president of the Royal Meteorological Society, deplored the over-mathematical abstractions of atmospheric research, arguing that ‘what should be the study of the physics of a real atmosphere overlying a real earth’” (Penman 1963, 453 as cited in Tadaki, Salmond et al. 2012, p.552). The development of human-environment geography continued through this period and was divided into two schools of thought, the Chicago school of thought that examined the relationship between humans and natural disasters, as well the Berkley or Sauerian schools of thought that examined the cultural impact on landscapes (Tadaki, Salmond et al. 2012).
The ‘modern era’ of physical geography from the 1970s onwards continued to see changes to the discipline. Throughout this time period, physical geography was beginning to undertake a new trajectory in the form “of technique developments, employing new technologies for process-based measurements and characterised by the mantra, ‘if it moves, measure it’” (Trudgill 2003, 272 as cited in Tadaki, Salmond et al. 2012, p. 553). The new technologies of this time period included remote sensing that allowed for “larger units of observations to be undertaken and new observations at much larger scales to be possible” (Tadaki, Salmond et al. 2012, p. 553). Further to this, the affordability of quaternary studies and the increased advancements of radiocarbon dating allowed for more widespread use amongst geographers and allowing for new modes of inquiry (Tadaki, Salmond et al. 2012). Climatology saw the continued expansion of geographical contributions to the discipline through the advancement of technology such as computer models (Tadaki, Salmond et al. 2012). Geomorphology saw the continuation of the process/form revolution and it was considered that geomorphology had evolved from geography into its own discipline (Tadaki, Salmond et al. 2012). In the 1990s, three major shifts of inquiry occurred in physical geography. The first being the change from “pure to applied research” (Tadaki, Salmond et al. 2012, p. 555). The second shift being “the rise of global environmental change emerged as a key focus and vehicle for much research funding, including global modelling and Quaternary studies” (Tadaki, Salmond et al. 2012, p.555). The third and final change was the change in the theory of landscape development from “reductionist process /form understandings to ‘naughty’ ontologies of complex natures (cf. Clifford 2001; see also Schumm 1991 as cited in Tadaki, Salmond et al. 2012, p. 555). The previously stated theories are still currently being reviewed and revised.
Physical geography in the twenty first century – The future of physical Geography – where it is going and where it should be going – how and why?
The relevance of physical geography of the twenty first century will continue to be debated due to the ongoing debate regarding whether or not physical and human geography should ‘merge’, as well as the assessment of the relevance and impact of geographical research methodology. According to Newson (1992), the debate regarding whether or not both physical and human geography should merge in the future has existed since the 1970s. It is further suggested that “it seems timely to contemplate commonalties and differences among the subdisciplines of Geography. There is a general sense that this may be an opportune, if not critical, juncture in our disciplinary evolution” (Bauer 1999, 677). Aspinall (2010) suggests that the future of physical geography should be more integrative of all different disciplines within geography, as well as demonstrating a link between physical and human geography to explain the different aspects and processes of the world. Further to this, it is also suggested that the need for a further cooperation between physical and human geography is needed to ensure that the links between the actions and issues of the human population and issues of the physical environment can be linked and “provide an imperative to understand not only how environmental and human systems operate as a coupled system but also to understanding how they could operate” (Easterling 2007, quoted in Aspinall 2010, 1055). Of course, the theories of the future of physical geography are important to examine, however, we also need to understand the importance of future research methodology. A survey is needed to examine the various contemporary methodologies within the discipline of physical geography so that the impact of these methodologies on academic research can be examined, as well as allowing for a “a more relevant and sustainable Geography” (Bauer 1999, 678).
Are we entering the Anthropocene age?
It is clear that the earth is entering the Anthropocene age as a result of human interactions with the natural environment. The Anthropocene age can be defined “as one in which Earth’s form and functioning have become inextricably entangled with the workings of human societies” (Steffen et al., 2004, 2016; Waters et al., 2016 quoted in Ellis 2017, 525). The natural environment has been heavily impacted on by human activity, with such major examples including climate change, the continued acidification of the worlds’ oceans, land use changes around the world and the loss of various habitats and ecosystems (Johnson and Morehouse 2014). The impact of economics can be linked to the human impact on the environment, for example, natural resources such as coal, gold, tin and copper are extracted from mines to meet supply demands on the global markets, thus ensuring that in the case of mines, decisions regarding the environment are made in boardrooms (Johnson and Morehouse 2014).
So, what is the perception of this alleged new age among physical geographers? According to Ellis (2017), many physical geographers argue against the naming of a new age due to “embodying a profound misunderstanding of the socially differentiated, historically contingent, and deeply heterogeneous and unequal nature of human–environmental change – one that might produce more problems than solutions” (Castree, 2014; LeCain, 2015; Malm and Hornborg, 2014; Moore, 2016 quoted in Ellis 2017, 527). Furthermore, it also argued that the changes occurring throughout the earth are not as a result of all humans changing the environment, but different groups of humans “engaging in different social–environmental processes at different times with different consequences” (Ellis 2017, 527). Adding the Anthropocene age to the geological time line could cause criticisms from the geographical world to increase as a result (Ellis 2017). Conversely, Crumley, Laparidou et al. (2015) suggests that studies conducted by physical geographers, historians and human geographers can be combined to assist with our understanding of the alleged global entry into the Anthropocene age.
In conclusion, it is clear that the role of physical geography is important, dynamic and constantly evolving one. It was clear that the discipline of physical geography is crucial when examining the interaction between the physical and human environments. This essay examined the origins of physical geography, how physical geography has developed over time, physical geography in the ‘modern world’, whether or not we are entering Anthropocene era, interrelationships between physical and human geography and the future of physical geography. These factors were all important to examine as they gave an important insight into the development of physical geography, as well as the ‘how?’ and ‘why?’ of its future trajectory as an important discipline.
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