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Nitrogen deposition in rural areas of Catalonia, near the threshold for adverse effects on forests...
Nitrogen is anNirgeni nesna leetfrlf.Isntr cclei heboshe asbe odifidb umnactvy icrean eincopunds. This study evlae th nrgndeostin
Fossil horse teeth show climatic change
Researchers from the Institut Català de Paleontologia and Utrecht University have analyzed the tooth enamel of fossil horse teeth dating from 11 to 2 million years ago near Teruel, Daroca and Valencia. Changes in the proportion of light and heavy oxygen isotopes in the teeth suggest...
