Search our collection of background (non-event) articles from news media, science journals and other sources.
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47 | 16 |
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8 | 6 | 10 | 11 | 6 | 4 | 7 | 2 | 2 | 1 | 2 | 4 |
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SPRING | 11 | |
WINTER | 9 | |
SUMMER | 7 | |
FALL | 2 |
United States | 30 | |
Canada | 2 | |
Svalbard and Jan Mayen | 2 | |
Russia | 1 |