Search our collection of background (non-event) articles from news media, science journals and other sources.
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14 | 8 |
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2 | 1 | 1 | 2 | 5 | 2 | 3 | 3 | 3 |
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FALL | 2 | |
SUMMER | 2 | |
WINTER | 2 | |
SPRING | 1 |
United States | 6 | |
Canada | 2 | |
French Polynesia | 1 | |
Norway | 1 | |
Sweden | 1 |