MPSC 2026 Prelims Paper-I · Question 33 of 100

Correct — option (3), 'Statements (a) and (b)'. Read the instruction first: the question asks which statements are NOT correct, so every judgement must be inverted before the option is picked, and this is where most of the marks on this question are lost. Statement (a) places the United Nations Conference on Environment and Development of 1992 at Montreal. The year is right and the conference is right, but the city is wrong: UNCED, universally known as the Earth Summit, was held at Rio de Janeiro in Brazil from 3 to 14 June 1992, and it produced the Rio Declaration with its 27 principles, Agenda 21 and the Forest Principles, while the Framework Convention on Climate Change and the Convention on Biological Diversity were opened for signature there. Montreal belongs to a different instrument altogether — the Montreal Protocol on ozone-depleting substances, adopted in 1987 — and the confusion between the two is exactly what the statement is built on. Statement (a) is therefore not correct. Statement (b) links the Brundtland Report of 1987 to a United Nations second conference at Nairobi. The report, properly titled Our Common Future, is the report of the World Commission on Environment and Development, an independent commission created by the United Nations General Assembly in 1983 and chaired by the Norwegian prime minister Gro Harlem Brundtland. It was submitted in 1987 and is remembered for the definition of sustainable development as development that meets the needs of the present without compromising the ability of future generations to meet their own needs. It was not the output of any conference at Nairobi; the Nairobi meeting of 1982 was the ten-year review of the Stockholm Conference of 1972 and produced the Nairobi Declaration. Statement (b) is therefore not correct either. Statement (c) says the Kyoto Protocol aimed to address anthropogenic climate change, which is an accurate statement of its purpose: adopted in 1997 under the UN Framework Convention on Climate Change, it imposed binding emission-reduction commitments on developed, Annex I, countries. Statement (c) is correct, and so it is not part of the answer. Two statements fail — (a) and (b) — which is option (3).

• (1)Only statement (a) — Catches the Montreal-for-Rio error but lets statement (b) pass. The Brundtland Report was produced by the World Commission on Environment and Development, an independent commission set up by the General Assembly in 1983 and chaired by Gro Harlem Brundtland; it was not the outcome document of a conference at Nairobi. A candidate who has memorised the year 1987 and the word 'Brundtland' without knowing which body produced the report will find statement (b) unobjectionable and stop one statement short of the answer.
• (2)Only statement (b) — Catches the Brundtland error but accepts Montreal as the venue of the 1992 Earth Summit. The United Nations Conference on Environment and Development met at Rio de Janeiro in June 1992; Montreal is associated with the 1987 Protocol on ozone-depleting substances, a wholly different instrument in a different decade on a different problem. Confusing the two is a very common substitution, and a candidate who makes it here throws away a mark that turns on nothing more than a city name.
• (4)Statements (a), (b) and (c) — Requires statement (c) to be wrong as well, which it is not. The Kyoto Protocol, adopted at Kyoto in 1997 under the UN Framework Convention on Climate Change and in force from 2005, was directed squarely at human-induced climate change: it set quantified emission limitation and reduction commitments for developed countries and created the Clean Development Mechanism, Joint Implementation and emissions trading to help meet them. A candidate reaching for the all-inclusive option here has almost certainly lost track of the negative framing and is marking the statements that are correct.

The international environmental agenda is best held as a single dated sequence, because almost every question on it is a test of whether a candidate can attach the right event to the right year and place. The sequence runs: Stockholm 1972, the United Nations Conference on the Human Environment, the first of its kind, which produced the Stockholm Declaration, led to the creation of the United Nations Environment Programme with its headquarters at Nairobi, and gave 5 June as World Environment Day. Nairobi 1982, the ten-year review of Stockholm, which produced the Nairobi Declaration. The World Commission on Environment and Development, created by the General Assembly in 1983 and chaired by Gro Harlem Brundtland, reporting in 1987 as Our Common Future and putting sustainable development into general political vocabulary. Rio de Janeiro 1992, the United Nations Conference on Environment and Development or Earth Summit, which produced the Rio Declaration, Agenda 21 and the Forest Principles and opened the climate and biodiversity conventions for signature. Kyoto 1997, the Protocol under the climate convention. Johannesburg 2002, the World Summit on Sustainable Development, and Rio again in 2012 for Rio+20. Learn it as a line, not as isolated facts, and misplacements like the two in this question become visible immediately.

The Brundtland Commission matters out of proportion to its length because it supplied the definition that every later instrument uses. Sustainable development, in its formulation, is development that meets the needs of the present without compromising the ability of future generations to meet their own needs — a phrase built around two ideas the report names explicitly, the concept of needs, and the idea of limitations imposed by technology and social organisation on the environment's ability to meet them. That definition is the bridge between Stockholm's concern with pollution and Rio's attempt to marry environment with development, and it is why the report is remembered as a commission report rather than as a conference outcome: it was written by an independent commission over four years, not negotiated in a fortnight by governments. The Kyoto Protocol is the other end of the same story — the point at which the general principle of common but differentiated responsibilities, agreed at Rio, was converted into numbers binding on named countries.

• Stockholm, 1972 — the United Nations Conference on the Human Environment, the first UN conference on the subject. It produced the Stockholm Declaration, led to the establishment of the United Nations Environment Programme with headquarters at Nairobi, and gave rise to World Environment Day on 5 June.
• The Brundtland Report, Our Common Future, 1987 — the report of the World Commission on Environment and Development, created by the UN General Assembly in 1983 and chaired by Gro Harlem Brundtland. It defined sustainable development as development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
• Rio de Janeiro, 3–14 June 1992 — the United Nations Conference on Environment and Development, the Earth Summit. Outcomes: the Rio Declaration with 27 principles, Agenda 21, the Forest Principles, and the opening for signature of the UN Framework Convention on Climate Change and the Convention on Biological Diversity.
• The Kyoto Protocol, adopted at Kyoto in December 1997 under the UNFCCC and in force from February 2005, set binding emission-reduction commitments for developed (Annex I) countries and created three flexibility mechanisms — the Clean Development Mechanism, Joint Implementation and international emissions trading.
• Later milestones: the World Summit on Sustainable Development at Johannesburg in 2002, Rio+20 in 2012 with its outcome document The Future We Want, and the Paris Agreement of 2015, which replaced Kyoto's top-down targets with nationally determined contributions from all parties.

• Missing the negative framing. This stem asks which statements are NOT correct, and prints the word in bold; a candidate who solves the statements correctly and then marks the option listing the true ones will produce a confident wrong answer.
• Substituting Montreal for Rio. Montreal carries the 1987 ozone Protocol and Rio the 1992 Earth Summit; both are single-word answers to 'where was it held', which makes them unusually easy to swap under time pressure.
• Treating the Brundtland Report as a conference outcome. It is the report of an independent commission created by the General Assembly in 1983, not the declaration of any meeting, and questions frequently attach it to Stockholm, Nairobi or Rio to test exactly this.

This topic is examined almost entirely as event-to-year-to-place recall, in four shapes: the direct question ('the Earth Summit was held at'), the outcome question ('Agenda 21 was adopted at'), the statement-verification set used here, and the match. Because the material is a timeline, the efficient preparation is a single chronological table — year, place, name of the event, one or two outcomes — memorised as a sequence so that any misplacement stands out. Then add the discipline the negative framing demands: mark each statement true or false in the margin of the question paper before looking at the options, and only then read the instruction again to see whether the paper wants the true ones or the false ones. That two-step habit is worth several marks across a paper that uses both framings.

No directly related past PYQ was found.

• practice — not a real PYQ

  The United Nations Conference on Environment and Development, popularly called the Earth Summit, was held in 1992 at :

  • (a)Stockholm
  • (b)Nairobi
  • (c)Rio de Janeiro
  • (d)Johannesburg

  Answer(c) Rio de Janeiro — the summit met there from 3 to 14 June 1992 and produced the Rio Declaration, Agenda 21 and the Forest Principles, and opened the climate and biodiversity conventions for signature. Stockholm hosted the 1972 conference on the human environment, Nairobi the 1982 ten-year review, and Johannesburg the 2002 World Summit on Sustainable Development.

• practice — not a real PYQ

  The report 'Our Common Future', 1987, which defined sustainable development, was produced by :

  • (a)The United Nations Environment Programme
  • (b)The World Commission on Environment and Development
  • (c)The Intergovernmental Panel on Climate Change
  • (d)The Club of Rome

  Answer(b) The World Commission on Environment and Development — an independent commission created by the UN General Assembly in 1983 and chaired by Gro Harlem Brundtland, from whom the report takes its popular name. The IPCC was established in 1988 to assess climate science, and the Club of Rome is remembered for The Limits to Growth of 1972, a different report altogether.