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RT @AGWobserver: Unusual reaction of diatom assemblage on climate changes during the last millennium https://t.co/Xt1o3XX7IG
RT @AGWobserver: Unusual reaction of diatom assemblage on climate changes during the last millennium https://t.co/Xt1o3XX7IG
Unusual reaction of diatom assemblage on climate changes during the last millennium https://t.co/Xt1o3XX7IG