Match List-I with List-II

List-I	List-II
(A) Brundtland Report	(I) 1992
(B) Antarctic Treaty	(II) 1991
(C) Antarctic Environmental Protocol	(III) 1959
(D) Earth Summit in Rio de Janeiro	(IV) 1987

The correct option is (A) - (IV), (B) - (III), (C) - (II), (D) - (I).

Let us verify and understand the matching of each event in List-I with its corresponding year in List-II step-by-step:

1. (A) Brundtland Report matches with (IV) 1987:
The Brundtland Report, officially titled Our Common Future, was published in October 1987 by the World Commission on Environment and Development (WCED). It is highly significant as it defined and popularized the concept of "sustainable development".

2. (B) Antarctic Treaty matches with (III) 1959:
The Antarctic Treaty was opened for signature on December 1, 1959, and officially entered into force in 1961. It designated Antarctica as a scientific preserve, established freedom of scientific investigation, and banned military activity on the continent.

3. (C) Antarctic Environmental Protocol matches with (II) 1991:
The Protocol on Environmental Protection to the Antarctic Treaty (also known as the Madrid Protocol) was signed on October 4, 1991. It provides comprehensive protection of the Antarctic environment and associated ecosystems, designating Antarctica as a natural reserve, devoted to peace and science.

4. (D) Earth Summit in Rio de Janeiro matches with (I) 1992:
The United Nations Conference on Environment and Development (UNCED), also known as the Rio Summit or Earth Summit, was held in Rio de Janeiro, Brazil, from June 3 to June 14, 1992. This landmark summit addressed urgent problems of environmental protection and socio-economic development.

Combining all these matches, we get:
(A) → (IV)
(B) → (III)
(C) → (II)
(D) → (I)