Search our collection of background (non-event) articles from news media, science journals and other sources.
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17 | 93 | 25 |
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11 | 13 | 19 | 20 | 7 | 19 | 5 | 8 | 11 | 8 | 7 | 7 |
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SPRING | 21 | |
SUMMER | 19 | |
WINTER | 17 | |
FALL | 7 |
United States | 59 | |
Canada | 4 | |
Norway | 3 | |
French Polynesia | 1 | |
Russia | 1 | |
Svalbard and Jan Mayen | 1 |