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Environment

The environment is everything around us that shapes the conditions for life. Air, water, soil, oceans, forests, climate, plants, animals, microorganisms, cities, farms, and human-built spaces all form parts of the surroundings in which people and other organisms live.

The word appears everywhere from science and agriculture to business, government, travel, mining, and everyday conversation. Its meaning is broad because an environment can describe the surroundings of one organism, a particular ecosystem, a city, an entire region, or the planet as a whole.

Definition

Environment refers to the surrounding conditions, living organisms, physical features, and other factors that affect life and activity within a particular place or system.

In environmental science, the term commonly includes both biotic factors, meaning living components such as plants, animals, and microorganisms, and abiotic factors, including air, water, soil, sunlight, temperature, minerals, and climate. Human-built surroundings can also be considered part of the environment.

Why It Matters

Every living organism depends on environmental conditions. Plants require suitable combinations of light, water, nutrients, temperature, and space. Animals depend on food, water, habitat, and relationships with other species. Human societies additionally rely on environmental resources for agriculture, materials, energy, transportation, industry, and settlements.

Environmental conditions also influence where organisms can live and how ecosystems function. A coral reef, desert, tropical forest, freshwater lake, and agricultural field each support different combinations of life because their physical and biological conditions differ.

The Natural Environment

The natural environment includes features and processes associated with the physical and biological world. Atmosphere, oceans, rivers, forests, wetlands, deserts, mountains, soils, wildlife, and microorganisms are all components of natural environments.

These components constantly interact. Rain influences rivers and soil, plants alter habitats, animals move nutrients and seeds, oceans influence climate, and microorganisms decompose organic matter. The environment operates as connected systems rather than as a collection of isolated pieces.

The Built Environment

The built environment consists of surroundings created or substantially modified by people. Buildings, roads, bridges, railways, ports, parks, drainage systems, farms, factories, and cities are familiar examples.

Built and natural environments remain connected. A city still depends on air, water, land, energy, food, and other resources, while its buildings, transportation systems, waste, water use, and land development can influence surrounding ecosystems.

Biotic and Abiotic Factors

Environmental scientists often separate environmental components into biotic and abiotic factors to make their interactions easier to understand.

Biotic Factors

Biotic factors are the living components of an environment. They include plants, animals, fungi, bacteria, microorganisms, and interactions among living organisms.

Abiotic Factors

Abiotic factors are non-living physical and chemical components such as sunlight, temperature, water, air, soil, minerals, salinity, and climate.

Neither group functions independently. A plant, for example, interacts with insects, fungi, and competing plants while simultaneously responding to soil, rainfall, sunlight, and temperature.

Environment and Ecosystems

An ecosystem consists of living organisms within an area and their interactions with one another and with their non-living surroundings. The environment is the broader concept describing the conditions and surroundings in which those interactions occur.

A forest ecosystem therefore includes trees, animals, fungi, microorganisms, soil, water, climate, and the relationships connecting them. Similar interactions occur in wetlands, grasslands, coral reefs, deserts, rivers, lakes, and even heavily modified environments.

Ecosystem Services

Natural systems provide benefits that people use every day. These are commonly described as ecosystem services or nature's contributions to people.

They include food and fresh water, pollination, soil formation, nutrient cycling, climate regulation, coastal protection, raw materials, and cultural or recreational benefits. Many economic activities ultimately depend on these environmental functions even when the connection is easy to overlook.

Environment and Agriculture

Agriculture depends directly on environmental conditions. Soil fertility, rainfall, temperature, sunlight, water availability, pollinators, and growing seasons influence which crops and livestock can be produced in a particular area.

Farming also modifies environments through cultivation, irrigation, grazing, nutrient management, and changes in land use. Managing these interactions is an important part of maintaining productive agricultural systems over long periods.

Environment and Mining

Mining begins with geological resources found within the environment. Metals, minerals, phosphate rock, limestone, and other materials are extracted because they provide raw materials needed by agriculture, construction, manufacturing, infrastructure, and technology.

Mine planning and rehabilitation address the changes extraction can make to land, soil, water, vegetation, and habitats. Former mining landscapes may undergo environmental restoration to establish stable landforms, vegetation, water systems, or appropriate new uses.

Environment and Human Settlements

Human settlements develop within environmental conditions that influence access to water, food, transportation, building materials, and suitable land. Rivers, coastlines, fertile plains, natural harbors, and reliable water supplies have shaped the locations of settlements throughout history.

Modern technology allows cities to obtain resources from much farther away, yet the connection remains. Urban populations depend on environmental systems extending well beyond city boundaries for food, water, materials, energy, and waste management.

Environmental Protection

Environmental protection refers broadly to actions intended to maintain or improve environmental quality and safeguard ecosystems and natural resources.

Approaches can include protected areas, pollution controls, sustainable resource management, habitat conservation, environmental standards, waste management, ecosystem restoration, and scientific monitoring. The appropriate approach depends on the environment and the activities occurring within it.

Environmental Restoration

Environmental restoration focuses specifically on assisting the recovery of places that have already been degraded, damaged, or substantially altered.

Projects can restore forests, wetlands, rivers, former mining land, coastlines, grasslands, and other ecosystems. Depending on the site, work may involve restoring vegetation, improving soil, managing water, controlling erosion, removing invasive species, or allowing natural regeneration to proceed.

Environment and Sustainability

Sustainability involves meeting human needs while maintaining the environmental, social, and economic systems required over the long term. Environmental sustainability focuses particularly on the continued functioning of ecosystems and responsible use of natural resources.

This can influence decisions involving agriculture, energy, transportation, mining, manufacturing, construction, fisheries, tourism, and urban development.

Where You'll Encounter the Environment

The environment appears in almost every area of modern life. Farmers consider soil and water conditions, businesses manage resources and waste, governments establish environmental policies, scientists study ecosystems, and communities make decisions about land, development, conservation, and restoration.

Even ordinary choices involving food, transportation, electricity, products, water, and travel connect people with environmental systems somewhere along the supply chain.

Common Misconceptions

The Environment Only Means Nature

No. The term can include natural surroundings as well as built and modified environments in which people live and work.

Humans Exist Outside the Environment

No. People are part of environmental and ecological systems and depend on resources and processes supplied by them.

Environment and Ecosystem Mean Exactly the Same Thing

No. The environment describes surrounding conditions broadly, while an ecosystem specifically emphasizes interactions between living organisms and their non-living surroundings.

Environmental Protection Means Leaving Every Place Untouched

No. Environmental management can include conservation, restoration, sustainable resource use, pollution control, monitoring, and carefully managed human activity.

Frequently Asked Questions

What is the environment?

The environment consists of the surrounding living and non-living conditions, features, and influences affecting organisms and activities within a particular place or system.

What are the main components of the environment?

Environmental components include living organisms and non-living factors such as air, water, soil, sunlight, temperature, minerals, and climate, along with human-built surroundings where relevant.

What is the natural environment?

The natural environment includes physical and biological features such as air, oceans, rivers, soils, forests, wetlands, deserts, plants, animals, and microorganisms.

What is the built environment?

The built environment consists of human-created or substantially modified surroundings such as buildings, roads, cities, farms, transportation networks, and infrastructure.

What is the difference between environment and ecosystem?

Environment is a broad term for surrounding conditions, while an ecosystem describes living organisms interacting with each other and with their non-living environment as a functional system.

How is agriculture connected to the environment?

Agriculture depends on soil, water, climate, sunlight, nutrients, and living organisms while also changing land and other environmental conditions through farming activities.

Why should I care about the environment?

Human life and economic activity depend on environmental systems for food, fresh water, materials, healthy ecosystems, climate regulation, agriculture, and many other essential resources and functions.