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Question

'Agenda 21' — a comprehensive action plan for sustainable development — was adopted at which international conference?

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The correct answer is

1992 – Earth Summit, Rio de Janeiro

Agenda 21 is a non-binding global action plan for sustainable development in the 21st century, covering environment, economy and society.

It was adopted at the United Nations Conference on Environment and Development, popularly called the Earth Summit, held in Rio de Janeiro in 1992.

The 1972 Stockholm Conference launched global environmental cooperation but did not adopt Agenda 21; the Vienna Convention and the Kigali Agreement relate to protection of the ozone layer.

Hence, Agenda 21 was adopted at the 1992 Earth Summit, Rio de Janeiro.

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