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Understanding sustainability: Key definitions for beginners

Understanding sustainability: Key definitions for beginners

Saturday, March 1, 2025

Sustainability is about ensuring that our environment, society, and economy can thrive today without compromising the needs of future generations. It’s a concept that has grown from environmental concerns into a holistic framework guiding global development, corporate strategies, and everyday choices.

Core definition

  • Sustainability: The ability to maintain processes, systems, or practices over the long term without depleting resources or harming future generations.
  • Sustainable Development: Defined by the 1987 Brundtland Report as “meeting the needs of the present without compromising the ability of future generations to meet their own needs”.

The three pillars of Sustainability

Sustainability is often described through three interconnected dimensions:

Environmental Sustainability:

  • Focuses on protecting ecosystems, biodiversity, and natural resources.
  • Examples: reducing carbon emissions, conserving water, promoting renewable energy. 

Social Sustainability:

  • Ensures equity, justice, and well-being for communities.
  • Examples: fair labor practices, access to education, community resilience.

Economic Sustainability:

  • Promotes long-term prosperity without exhausting resources.
  • Examples: responsible investment, circular economy models, decoupling growth from environmental harm.

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