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| Description: Three principles of sustainability. We derive these three interconnected principles of sustainability from learning how nature has sustained a huge variety of life on the earth for at least 3.5 billion years, despite drastic changes in environmental conditions Picture Stats: Views: 4598 Filesize: 147.04kB Height: 1100 Width: 1213 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=8866 |