Precautionary principle

Indian Economy glossary

Topic: Environment and Sustainable Development · NCERT: Beyond NCERT

Meaning

The precautionary principle says that when an activity could cause serious or irreversible harm to the environment, the lack of full scientific proof is no excuse to delay cost-effective steps to prevent that harm. It is Rio Principle 15.

It matters because it changes who must prove what. The developer must show that a project is safe. The public does not have to prove that it is harmful. In India, the Supreme Court made it part of Indian law, and the National Green Tribunal must apply it.

Explanation

How it works

  • Normal approach: a project is stopped only after harm is proved. Proof often comes too late.
  • Precautionary approach: a project can be stopped or changed while the science is still unsure, if the possible harm is serious.

  • A threat of serious harm exists → the science is not certain → action is still taken → the harm is avoided before it happens.

  • Three conditions trigger it:

  • There is a threat of harm.
  • The harm could be serious or irreversible (it cannot be undone later, for example a species going extinct or a forest being lost).
  • There is scientific uncertainty (experts cannot yet say for sure what will happen).

Burden of proof shifts to the developer

  • Burden of proof means the duty to prove a claim.
  • Under this principle, the developer (the company or agency building the project) must show that the project is safe.
  • If the developer cannot show this, the regulator (the authority that controls such projects) may refuse approval, attach strict conditions or ask for more study.
  • Example: a company wants to fell a forest on a steep hill slope near a stream.
  • Nobody knows for sure how much soil will wash away.
  • Once the soil is gone, it cannot come back quickly. The Uttara Kannada paper mill shows this: after bamboo was cut, the soil washed away, only bare laterite (a hard, red, poor soil) remained, and rivulets dried up.
  • So caution is needed now, before the damage is proved.

What makes it stronger or weaker

  • Stronger: the possible harm is large or cannot be undone, people depend on the resource, and a proper study is done before approval.
  • Weaker: projects get approved after they have started (post-facto clearance), large exemptions are given, or public consultation is skipped.

In India

  • Supreme Court: the principle was read into Indian law in:
  • Vellore Citizens' Welfare Forum v. Union of India (1996), about tannery pollution in Tamil Nadu. It accepted both the precautionary principle and the polluter pays principle.

  • Indian Council for Enviro-Legal Action v. Union of India (1996), about chemical industry pollution in Bichhri, Rajasthan.

  • NGT Act 2010, Section 20: the National Green Tribunal must apply sustainable development, the precautionary principle and the polluter pays principle when it decides cases.

  • EIA as the working tool: an environmental impact assessment (EIA) studies a project's likely environmental and social effects before approval. It is made under the Environment (Protection) Act 1986, through EIA notifications of 1994 and 2006.
  • Its stages are screening → scoping → public consultation → appraisal.

  • Category A projects are cleared by MoEFCC. Category B projects are cleared by the SEIAA.

  • Where it has been tested:

  • Draft EIA 2020 was criticised for allowing post-facto clearance (approval after a project has already started or broken the rules). This goes against the "check first" idea.
  • Critics say the 2023 forest amendment weakens the principle. Examples include exempting land within 100 km of the border, LoC or LAC for strategic linear projects, and allowing zoos, safaris and eco-tourism in forests [1].

Don't confuse with

  • Polluter pays principle (Rio Principle 16): the polluter pays for preventing and cleaning up pollution. It decides who pays for harm. The precautionary principle tries to stop harm before it happens, even when the risk is not yet proved.
  • Preventive principle: it acts against a risk that is already known and proved. The precautionary principle acts even when the risk is uncertain.
  • Environmental impact assessment (EIA): EIA is a procedure (a study plus a clearance process). The precautionary principle is the legal idea behind it.
  • Sustainable development: this is the broad goal of meeting present needs without harming future generations (Brundtland, 1987). The precautionary principle is one of the legal tools used to reach that goal.

Prelims Hooks

  • Precautionary principle = Rio Principle 15. Polluter pays = Rio Principle 16. Exams often swap these two numbers.
  • Key words: harm must be "serious or irreversible", and lack of "full scientific certainty" is no reason to delay action.
  • It puts the burden of proof on the developer, not on the affected people or the government.
  • Vellore Citizens' Welfare Forum (1996) (tanneries, Tamil Nadu) read the principle into Indian law. ICELA (1996) was about Bichhri, Rajasthan.
  • NGT Act 2010, Section 20 requires the NGT to apply three principles: sustainable development, precautionary and polluter pays.
  • There is no separate Act for this principle. It comes through court judgments and the NGT Act.

Mains Points

  • Speed vs caution: post-facto clearance in Draft EIA 2020 and the exemptions in the 2023 forest amendment speed up projects. Critics say they weaken the precautionary principle and the wide meaning of "forest" set in the Godavarman case [1]. A balanced answer: speed up paperwork, but do not approve first and study later.
  • Protecting people as well as nature: the principle protects forest-dependent people. At Uttara Kannada, 10,800 jobs were created, but about 10 lakh people lost daily needs from the forest. Irreversible losses like these argue for caution, local consent, strong public hearings in EIA and a social impact assessment (SIA) under the RFCTLARR Act 2013.
  • From idea to enforceable law: together with the polluter pays principle (Vellore 1996, ICELA 1996, NGT Act s.20), this principle turns the Brundtland idea (1987) into rules that courts can enforce. It also links to SDG 15 (Life on Land).

Related concepts

Read more

Sources

  1. 1The Forest (Conservation) Amendment Bill, 2023 (PRS Bill Track)prsindia.org · tier 1