Search our collection of background (non-event) articles from news media, science journals and other sources.
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15 | ||
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5 | ||
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64 | ||
35 | ||
32 | ||
26 | ||
21 | ||
5 | ||
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2 | ||
2 | ||
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5 | 12 | 31 | 16 |
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4 | 1 | 9 | 9 | 8 | 15 | 4 | 2 | 2 | 7 | 3 |
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SPRING | 12 | |
SUMMER | 11 | |
WINTER | 6 | |
FALL | 5 |
United States | 33 | |
Canada | 2 | |
Russia | 2 | |
Svalbard and Jan Mayen | 1 |