geography
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What is geography?
Geography is the study of the diverse environments, places, and spaces on Earth's surface and their interactions. It seeks to answer why things are as they are and where they are. Modern geography is rooted in ancient practices concerned with the characteristics of places, notably their natural environments and peoples, and the relationships between them. The academic discipline is broad, encompassing physical and human geography, with specialists sharing interests in places, spaces, and environments.
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What are the two main branches of geography?
Geography is a broad academic discipline divided into two main branches: physical geography and human geography. Physical geography studies Earth’s surface processes through field and lab work, with emphasis on environmental change. Human geography studies economic, social, cultural, and political facets of human populations.
The division between them stems from the early 20th century when physical geographers started identifying as environmental scientists, and human geographers aligned with social sciences. Despite different approaches, there is increasing interest in the interactions between human societies and physical environments, with some seeing the environmental focus as a means of reintegrating physical and human geography.
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What is physical geography?
Physical geography is a scientific discipline that studies Earth's exterior physical features and changes. It focuses on the natural environment and surface processes, requiring knowledge of physics, chemistry, biology, and mathematics.
This field analyzes contemporary processes through field and laboratory investigations and reconstructs past environments. It integrates these findings into research programs on past, present, and future environmental changes. Physical geographers use their expertise in remote data analysis to address questions about the location, quantity, and condition of Earth's features.
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What is human geography?
Human geography is a branch of geography that studies the interrelationships between people, places, and environments. It focuses on how humans affect and are affected by the world. Human geography is extremely broad, containing many subdivisions such as economic, social, cultural, political, and historical geography. Human geography uses qualitative and quantitative methods to analyze the world.
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How do geographers use maps to study the world?
Geographers use maps as essential tools to study the world, and mapmaking skills were once a core part of geography education. Modern cartography uses aerial and satellite photos to represent geographical areas on flat surfaces.
With the rise of computer technology, geographic information systems (GIS) evolved, enabling geographers to convert maps into digital forms, manipulate data, and produce new maps. GIS allows for the storage of thematic content, which can then be compared to other maps. These systems are used to analyze spatial data, find optimal routes, and create models for problem-solving tasks.
Population density maps are used to understand human geography. Governments use population data to allocate resources and make decisions on urban planning.
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How does geography influence how people live and interact with their environment?
Geography significantly shapes human life and interaction with the environment. Physical geography concentrates on the Earth's surface processes and how they change over time. The environment influences how societies develop and use resources. Climate, landforms, and water availability affect agriculture, settlement patterns, and economic activities.
Human activities, such as deforestation and urbanization, also alter local and global climates, highlighting the reciprocal relationship between humans and their environment. Understanding these geographical dynamics is crucial for addressing environmental issues and promoting sustainable practices.
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geography, the study of the diverse environments, places, and spaces of Earth’s surface and their interactions. It seeks to answer the questions of why things are as they are, where they are. The modern academic discipline of geography is rooted in ancient practice, concerned with the characteristics of places, in particular their natural environments and peoples, as well as the relations between the two. Its separate identity was first formulated and named some 2,000 years ago by the Greeks, whose geo and graphein were combined to mean “earth writing” or “earth description.” However, what is now understood as geography was elaborated before then, in the Arab world and elsewhere. Ptolemy, author of one of the discipline’s first books, Guide to Geography (2nd century ce), defined geography as “a representation in pictures of the whole known world together with the phenomena which are contained therein.” This expresses what many still consider geography’s essence—a description of the world using maps (and now also pictures, as in the kind of “popular geographies” exemplified by National Geographic Magazine)—but, as more was learned about the world, less could be mapped, and words were added to the pictures.
To most people, geography means knowing where places are and what they are like. Discussion of an area’s geography usually refers to its topography—its relief and drainage patterns and predominant vegetation, along with climate and weather patterns—together with human responses to that environment, as in agricultural, industrial, and other land uses and in settlement and urbanization patterns.
Although there was a much earlier teaching of what is now called geography, the academic discipline is largely a 20th-century creation, forming a bridge between the natural and social sciences. The history of geography is the history of thinking about the concepts of environments, places, and spaces. Its content covers an understanding of the physical reality we occupy and our transformations of environments into places that we find more comfortable to inhabit (although many such modifications often have negative long-term impacts). Geography provides insights into major contemporary issues, such as globalization and environmental change, as well as a detailed appreciation of local differences; changes in disciplinary interests and practices reflect those issues.
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Historical development of geography
The history of geography has two main parts: the history of exploration and mapmaking and the development of the academic discipline.