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This may come as a surprise, but the link between sustainability and environmentalism is actually fairly recent. Before 1980, sustainability was an uncommon variant of sustainable, as in “capable of being upheld,” and it could be used in any context. But in 1980 that all changed when the International Union for the Conservation of Nature published the World Conservation Strategy, including an entire section called …

Read more in this article about some frequently asked questions and fun facts related to our definitions.