Ukraine deluged by protests over plans for Danube delta.
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D000818:Animals; D044822:Biodiversity; D001717:Birds / Q000502:physiology; D003247:Conservation of Natural Resources; D004463:Ecology; D017753:Ecosystem; D005399:Fishes / Q000502:physiology; D007391:International Cooperation; D009792:Oceans and Seas; D045483:Rivers; D014455:Ukraine