Search our collection of background (non-event) articles from news media, science journals and other sources.
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1 |
32 | ||
16 | ||
13 | ||
7 | ||
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18 | 14 |
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3 | 1 | 1 | 3 | 4 | 1 | 6 | 1 | 1 | 3 | 4 | 4 |
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SUMMER | 5 | |
FALL | 3 | |
WINTER | 1 |
United States | 16 | |
Canada | 3 | |
Iceland | 1 |