Module 1

Multidisciplinary Nature of Environmental Studies

~30 min

Overview

Every course you take studies one slice of the world. Environmental studies is different: it asks how the whole system of air, water, land, living things and human societies fits together, and what happens when we disturb it. This short opening module defines the field, shows why it needs many disciplines, and explains why public awareness matters.

Learning objectives

By the end of this module, you’ll be able to:

  • 1Define the environment and environmental studies, and describe the scope of the subject
  • 2Explain why environmental problems cannot be solved by one discipline alone
  • 3Argue why public awareness and individual action matter, with examples

1.1 Definition, Scope and Importance

Four topics — click to expand each one.

What is the “environment”?

The environment is everything that surrounds a living being and influences it: the physical surroundings (air, water, soil, climate), the living world (plants, animals, microbes) and the human-made and social setting (cities, institutions, culture). These parts constantly interact.

The four classic components

  • Atmosphere — the layer of gases around the Earth
  • Hydrosphere — all water: oceans, rivers, lakes, ice, groundwater
  • Lithosphere — rocks, minerals and soil
  • Biosphere — the zone where life exists, which overlaps the other three
Environmental studies is the interdisciplinary study of how natural systems work, how humans depend on and change them, and how problems can be solved sustainably.
Why it is multidisciplinary

A single environmental problem usually has scientific, economic, social, legal and ethical sides at once. Take a polluted river: chemistry explains what is in the water, ecology shows what it does to fish, economics asks who pays for treatment, law decides who is liable, and sociology asks whose livelihoods are affected.

DisciplineWhat it contributes
Biology, ecologyHow organisms and ecosystems function
Chemistry, physicsPollutants, energy, climate processes
Geology, geographyResources, landforms, hazards, mapping
EconomicsCosts, incentives, resource pricing
Sociology, history, anthropologyCommunities, livelihoods, traditional knowledge
Law, political scienceRegulation, rights, governance
Ethics, media, educationValues, communication, behaviour change
Scope

The scope of environmental studies runs from local to global and covers natural resources, ecosystems, biodiversity, pollution, waste, climate change, population, sustainable development and environmental law. It also opens careers beyond the sciences, for example environmental journalism, impact assessment, sustainability and CSR roles, wildlife and forest management, planning, and community advocacy.

Importance
  • Life support: clean air, water, food and climate stability all come from natural systems
  • Livelihoods: farming, fishing, forestry and tourism depend directly on environmental health
  • Health: pollution and degraded ecosystems raise disease burdens
  • Fairness: environmental harm usually falls hardest on poorer and marginalised communities
  • The future: sustainable development means meeting present needs without ruining what later generations need
Update (2026): The UN describes today’s challenges as a “triple planetary crisis” of climate change, biodiversity loss and pollution. The 17 Sustainable Development Goals (2015) set shared targets to 2030, and several, such as Goals 6, 12, 13, 14 and 15, are directly environmental.

1.2 Need for Public Awareness

Three topics — click to expand each one.

Why awareness matters

Environmental problems are mostly the sum of millions of small decisions: what we buy, burn, throw away and vote for. Laws and technology help, but they work only when people understand the problem and support the solution. Awareness also lets citizens notice violations, ask questions of authorities and take part in decisions.

This is why, in 1991, the Supreme Court of India (in M.C. Mehta v. Union of India) directed that environmental education be introduced at every level of schooling and college. That direction is the origin of this very course.

How awareness is built
  • Education: formal courses, eco-clubs, field visits
  • Media and campaigns: documentaries, news, social media, days such as World Environment Day (5 June)
  • Community action: local movements, citizen science, neighbourhood clean-ups
  • Policy nudges: labelling, bans on single-use plastics, public data portals
Update (2026): India’s Mission LiFE (Lifestyle for Environment), launched in 2022, promotes small everyday habits such as saving energy and water, avoiding single-use plastic, and reusing and recycling, as a mass movement rather than a rule.
Milestones in global environmental awareness
YearEventWhy it matters
1972UN Conference on the Human Environment, StockholmFirst major global environment conference; led to UNEP and World Environment Day
1984Bhopal gas disasterPushed India to enact the Environment (Protection) Act, 1986
1992Earth Summit, Rio de JaneiroSustainable development, climate and biodiversity conventions
2002World Summit on Sustainable Development, JohannesburgReviewed progress since Rio
2015Paris Agreement and the SDGsGlobal climate goal and a 2030 development agenda

Readings

Books & Textbooks
  • Bharucha, Erach. Textbook for Environmental Studies for Undergraduate Courses of All Branches of Higher Education. University Grants Commission, 2004. (Course textbook; see Unit 1.)
  • Miller, G. Tyler, and Scott Spoolman. Environmental Science. Cengage.
Websites & Online Resources
  • United Nations Environment Programme: unep.org
  • Ministry of Environment, Forest and Climate Change, India: moef.gov.in
  • Centre for Science and Environment / Down To Earth: downtoearth.org.in

Discussion

Think of one environmental problem in your neighbourhood or city. Which disciplines would you need to understand it fully? Post your example, then respond to a classmate.

Practice quiz

Ungraded — check your understanding before the assignment.

1. Environmental studies is best described as:

2. Which is NOT one of the four classic components of the environment?

3. A 1991 Supreme Court direction led to compulsory environmental education in the case:

4. World Environment Day is observed on:

5. The “triple planetary crisis” refers to:

Graded assignment

Local issue brief — 300 words

Choose one environmental issue in your locality. Explain it in plain language, name at least three disciplines that help us understand it, and suggest one action that individuals or the community could take.

CriterionWeight
Clear description of a real local issue30%
Use of at least three disciplines35%
Realistic, specific action proposed20%
Clarity and structure15%
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