GATE Environmental Engineering Environmental Management and Sustainable Development Syllabus

What financing mechanism was created under the Water (Prevention and Control of Pollution) Cess Act?

The Water Cess Act, 1977 — it levies a cess (tax) on water consumed by industries and local authorities to augment the resources of the Central and State Pollution Control Boards.

What is the full title and year of the 'Air Act' in India?

The Air (Prevention and Control of Pollution) Act, 1981.

Which constitutional provision / event prompted the enactment of the Air Act, 1981?

The decisions taken at the United Nations Conference on the Human Environment held in Stockholm in 1972, which India sought to implement.

What statutory bodies were established by the Water Act, 1974?

The Central Pollution Control Board (CPCB) and the State Pollution Control Boards (SPCBs).

Under what broader constitutional authority was the Environment (Protection) Act, 1986 enacted?

It was enacted under Article 253 of the Constitution to implement the decisions of the 1972 Stockholm Conference on the Human Environment.

What event was a major catalyst for the Environment (Protection) Act, 1986?

The Bhopal Gas Tragedy of December 1984 (Union Carbide methyl isocyanate leak), which exposed gaps in India's environmental legislation.

Why is the Environment (Protection) Act, 1986 often called an 'umbrella' legislation?

Because it provides a framework for central coordination of the activities of various central and state authorities established under earlier laws (such as the Water and Air Acts) and enables comprehensive environmental protection.

Which major sets of rules were notified under the Environment (Protection) Act, 1986?

Rules such as the EIA Notification, Hazardous Waste (Management) Rules, Bio-Medical Waste Rules, Municipal Solid Waste Rules, Coastal Regulation Zone (CRZ) Notification, and Noise Pollution Rules.

What is the National Green Tribunal Act, and in what year was it enacted?

The National Green Tribunal (NGT) Act, 2010 — it established a specialized tribunal for effective and expeditious disposal of cases relating to environmental protection and conservation of natural resources.

Within what time frame is the NGT mandated to dispose of cases?

The NGT endeavours to dispose of applications or appeals finally within 6 months of their filing.

On which principles is the NGT required to base its decisions?

On the principles of sustainable development, the precautionary principle, and the polluter pays principle.

India became the third country in the world to set up a specialized environmental tribunal. Which two countries preceded it?

Australia and New Zealand — India was the third nation to establish a dedicated environmental court/tribunal via the NGT Act, 2010.

What is the National Environment Policy (NEP), 2006?

India's overarching policy statement that seeks to mainstream environmental concerns into all development activities, building on existing policies, and based on the principle that conservation and livelihood security are best served by sustainable use of resources.

What is the central theme/dominant principle of the National Environment Policy, 2006?

That the best way to conserve environmental resources is to ensure that the people dependent on them obtain better livelihoods from conservation than from its degradation — linking environmental protection with human well-being and sustainable development.

What is the 'Common but Differentiated Responsibilities' (CBDR) principle in international environmental law?

The principle that all states share responsibility for protecting the global environment, but developed countries bear a greater responsibility owing to their historical contribution to environmental problems and their greater capacity to act.

Name the international treaty that successfully phased out ozone-depleting substances.

The Montreal Protocol on Substances that Deplete the Ozone Layer (1987), under the Vienna Convention (1985).

Match the treaty to its focus: Kyoto Protocol, Paris Agreement, Basel Convention, Stockholm Convention.

Kyoto Protocol (1997) — binding greenhouse gas reduction targets; Paris Agreement (2015) — limit global warming to well below 2°C; Basel Convention (1989) — transboundary movement of hazardous wastes; Stockholm Convention (2001) — Persistent Organic Pollutants (POPs).

What is the goal of the Paris Agreement (2015) regarding global temperature?

To hold the increase in global average temperature to well below $2\,^{\circ}\mathrm{C}$ above pre-industrial levels, and to pursue efforts to limit it to $1.5\,^{\circ}\mathrm{C}$.

Distinguish between energy 'resources' and 'reserves'.

Resources are the total estimated amount of an energy substance present in nature (whether or not currently recoverable); reserves are the portion of resources that can be economically and technically extracted under present conditions.

List the major categories of non-renewable energy sources.

Fossil fuels — coal, petroleum (crude oil), and natural gas — and nuclear fuels such as uranium and thorium. They exist in finite amounts and deplete with use.

List the major categories of renewable energy sources.

Solar, wind, hydropower, biomass/bioenergy, geothermal, tidal, wave, and ocean thermal energy. They are naturally replenished on a human timescale.

What distinguishes renewable from non-renewable energy sources?

Renewable sources are naturally replenished on a human timescale and are essentially inexhaustible; non-renewable sources exist in fixed finite quantities, form over geological timescales, and are depleted by use.

What is the Energy-Environment nexus?

The interdependent relationship in which energy production and consumption cause environmental impacts (e.g., air pollution, greenhouse gas emissions, land/water degradation), while environmental constraints and policies shape energy choices and technologies.

Which energy-related emissions are the principal anthropogenic contributors to global warming?

Carbon dioxide ($\ce{CO2}$) from fossil fuel combustion, along with methane ($\ce{CH4}$) and nitrous oxide ($\ce{N2O}$).

Give the classic Brundtland Commission definition of sustainable development.

"Development that meets the needs of the present without compromising the ability of future generations to meet their own needs" — from the 1987 report 'Our Common Future' (Brundtland Report).

What are the three pillars (dimensions) of sustainable development?

Economic (economic growth/viability), Social (social equity/inclusion), and Environmental (ecological protection) — often summarized as profit, people, and planet.

How many Sustainable Development Goals (SDGs) are there, and when were they adopted?

There are 17 SDGs (with 169 targets), adopted by the United Nations in 2015 as part of the 2030 Agenda for Sustainable Development; they came into effect in 2016.

Which UN summit and document preceded the SDGs, and what were their predecessors called?

The SDGs succeeded the Millennium Development Goals (MDGs), which ran from 2000 to 2015; the SDGs were adopted at the 2015 UN Sustainable Development Summit.

Name three SDGs directly related to environmental management.

SDG 6 (Clean Water and Sanitation), SDG 7 (Affordable and Clean Energy), SDG 13 (Climate Action), SDG 14 (Life Below Water), and SDG 15 (Life on Land) — any three are correct.

What is the 'tragedy of the commons' as a hurdle to sustainability?

A situation where individuals, acting in their own self-interest, overexploit and deplete a shared (common) resource — such as fisheries, the atmosphere, or grazing land — to the collective long-term detriment of all.

List the major hurdles to achieving sustainable development.

Population growth, poverty, over-consumption and unsustainable lifestyles, dependence on fossil fuels, the tragedy of the commons, lack of political will and weak governance, economic constraints, technological limitations, and inequitable distribution of resources.