Match the following environmental concepts with their meanings:

Column A Column B

i. Global Commons a. Resources outside national jurisdiction

ii. Earth Summit b. First major political level summit (1992)

iii. Kyoto Protocol c. International treaty to reduce emissions

iv. Common but Differentiated Responsibilities d. Principle of equity in environmental obligations

Column A	Column B
i. Global Commons	a. Resources outside national jurisdiction
ii. Earth Summit	b. First major political level summit (1992)
iii. Kyoto Protocol	c. International treaty to reduce emissions
iv. Common but Differentiated Responsibilities	d. Principle of equity in environmental obligations

i-a, ii-b, iii-c, iv-d

i-b, ii-c, iii-d, iv-a

i-d, ii-a, iii-b, iv-c

i-a, ii-d, iii-b, iv-c