Search our collection of background (non-event) articles from news media, science journals and other sources.
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15 | 45 |
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28 | 11 | 5 | 1 | 15 |
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WINTER | 24 | |
SPRING | 3 |
United States | 30 | |
Canada | 3 | |
Russia | 3 | |
Norway | 2 | |
Faroe Islands | 1 | |
Finland | 1 | |
Iceland | 1 | |
India | 1 | |
Mongolia | 1 |