Search our collection of background (non-event) articles from news media, science journals and other sources.
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69 | 45 | 64 | 77 | 67 | 60 | 40 | 31 | 34 | 41 | 42 | 40 |
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WINTER | 100 | |
SPRING | 91 | |
SUMMER | 78 | |
FALL | 39 |
United States | 249 | |
Canada | 36 | |
Norway | 18 | |
Russia | 12 | |
Svalbard and Jan Mayen | 5 | |
Iceland | 4 | |
Sweden | 3 | |
China | 2 | |
Finland | 2 | |
Ireland | 2 | |
Switzerland | 2 | |
Brazil | 1 | |
Cambodia | 1 | |
France | 1 | |
French Polynesia | 1 | |
Poland | 1 | |
Spain | 1 | |
United Kingdom | 1 | |
Uzbekistan | 1 |