Sustainable development was defined for the first time in thea.Brunt land reportb.Johannesburg Declarationc.Rio-declarationd.Kyoto-declaration

Breakdown the Problem

1. Identify the key terms in the question related to sustainable development.
2. Determine which option correctly identifies the first definition of sustainable development.

Relevant Concepts

• Sustainable development is commonly associated with environmental policy and international treaties.
• The Brundtland Report is widely recognized for coining the term.

Analysis and Detail

1. The Brundtland Report, officially titled "Our Common Future," was published in 1987 by the World Commission on Environment and Development (WCED). It provides a comprehensive 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.
2. The Johannesburg Declaration (2002) focuses on sustainable development but does not define it.
3. The Rio Declaration (1992) reiterates the principles of sustainable development but does not create the definition.
4. The Kyoto Protocol (1997) relates to climate change mitigation and does not define sustainable development.

Verify and Summarize

Based on the analysis, the term sustainable development was first defined in the Brundtland Report.

Final Answer

a. Brundtland Report.