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D003247:Conservation of Natural Resources / Q000266:history / Q000331:legislation & jurisprudence / Q000706:statistics & numerical data; D018534:Earth, Planet; D058735:Environmental Policy / Q000266:history / Q000331:legislation & jurisprudence*; D016468:Forestry / Q000266:history / Q000706:statistics & numerical data; D049673:History, 20th Century; D049674:History, 21st Century; D007391:International Cooperation; D007857:Leadership; D011057:Politics