• [2013-05-07] Decline in snow cover spells trouble for many plants, animals
  + http://www.news.wisc.edu/releases/17943 + http://www.esajournals.org/doi/abs/10.1890/120222 + http://e360.yale.edu/digest/declining_snow_cover_imperils_plant_and_animal_species_study_says/3838/
  in Tietoukka Monitor > 2013 > 2013-19 with northern_hemisphere snow_cover subnivium

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