![]() For this reason, in everyday use, "sustainability" is often focused on countering major environmental problems, such as climate change, loss of biodiversity, loss of ecosystem services, land degradation, and air and water pollution. Many publications state that the environmental dimension is the most important. Sustainability is commonly described as having three dimensions (or pillars): environmental, economic, and social. Specific definitions of sustainability are difficult to agree on and have varied with literature, context, and time. Sustainability is a societal goal that relates to the ability of people to safely co-exist on Earth over a long time. The schematic with the nested ellipses emphasizes a hierarchy of the dimensions, putting "environment" as the foundation for the other two. Visual representations of sustainability and its three dimensions: Left, sustainability as three intersecting circles. ![]()
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