Search our collection of background (non-event) articles from news media, science journals and other sources.
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59 | 37 | 56 | 73 | 60 | 50 | 40 | 30 | 34 | 41 | 33 | 29 |
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SPRING | 84 | |
SUMMER | 75 | |
WINTER | 71 | |
FALL | 30 |
United States | 219 | |
Canada | 32 | |
Norway | 17 | |
Russia | 10 | |
Svalbard and Jan Mayen | 4 | |
Iceland | 3 | |
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 |