Search our collection of background (non-event) articles from news media, science journals and other sources.
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9 | ||
6 | ||
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59 | ||
31 | ||
31 | ||
24 | ||
19 | ||
5 | ||
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9 | 31 | 19 |
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3 | 1 | 7 | 9 | 8 | 15 | 1 | 4 | 2 | 2 | 6 | 1 |
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SPRING | 11 | |
SUMMER | 11 | |
FALL | 4 | |
WINTER | 3 |
United States | 29 | |
Russia | 2 | |
Canada | 1 | |
Svalbard and Jan Mayen | 1 |