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Pfynwald - Switzerland |
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Post-mining lakes - Czechia |
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Postojna-Planina Cave System - Slovenia |
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REES - Rhine Eco-Evolutionary System - Germany |
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Rennes métropole - Réseau de stations météorologiques - France |
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Rhine-Main-Observatory - Germany |
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Rimov reservoir - Czechia |
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Rofental - Austria |
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SAEON Maputaland Coastal Plain site - South Africa |
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Sani Environmental Observatory - Greece |