Search our collection of background (non-event) articles from news media, science journals and other sources.
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31 | 17 | 107 | 42 |
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15 | 13 | 17 | 39 | 19 | 17 | 27 | 9 | 8 | 14 | 8 | 11 |
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SPRING | 39 | |
SUMMER | 32 | |
WINTER | 23 | |
FALL | 12 |
United States | 78 | |
Canada | 15 | |
Norway | 5 | |
Russia | 5 | |
Svalbard and Jan Mayen | 4 | |
Iceland | 3 | |
Sweden | 2 | |
China | 1 | |
Finland | 1 | |
Saint Vincent and the Grenadines | 1 | |
Switzerland | 1 | |
United Kingdom | 1 |