Search our collection of background (non-event) articles from news media, science journals and other sources.
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33 | 22 | 93 | 26 |
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13 | 18 | 29 | 26 | 7 | 23 | 6 | 9 | 12 | 8 | 11 | 12 |
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SPRING | 37 | |
WINTER | 29 | |
SUMMER | 24 | |
FALL | 12 |
United States | 70 | |
Canada | 7 | |
Norway | 4 | |
French Polynesia | 1 | |
Japan | 1 | |
Russia | 1 | |
Svalbard and Jan Mayen | 1 | |
Vietnam | 1 |