Search our collection of background (non-event) articles from news media, science journals and other sources.
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26 | 18 | 15 | 17 | 13 | 28 | 23 | 22 | 23 | 18 | 29 | 22 |
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SUMMER | 57 | |
WINTER | 52 | |
FALL | 49 | |
SPRING | 32 |
United States | 90 | |
Canada | 24 | |
Norway | 7 | |
Russia | 6 | |
Australia | 2 | |
Greece | 1 | |
Greenland | 1 | |
India | 1 | |
Nigeria | 1 | |
Spain | 1 | |
Svalbard and Jan Mayen | 1 | |
Sweden | 1 | |
Vietnam | 1 |