Search our collection of background (non-event) articles from news media, science journals and other sources.
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7 25% | ||
5 18% | ||
4 14% | ||
4 14% | ||
3 11% | ||
2 7% | ||
2 7% | ||
1 4% | ||
1 4% | ||
1 4% | ||
1 4% |
6 21% | ||
5 18% | ||
4 14% | ||
3 11% | ||
2 7% | ||
2 7% | ||
2 7% | ||
2 7% | ||
2 7% | ||
1 4% | ||
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1 4% | ||
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1 4% | ||
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1 4% | ||
1 4% |
8 29% | ||
6 21% | ||
5 18% | ||
4 14% | ||
4 14% | ||
3 11% | ||
3 11% | ||
3 11% | ||
3 11% | ||
2 7% | ||
2 7% | ||
2 7% | ||
2 7% | ||
1 4% |
1 | 27 |
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10 | 7 | 5 | 2 | 3 | 1 |
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WINTER | 18 | |
SPRING | 7 |
United States | 13 | |
Canada | 2 | |
Russia | 2 | |
Iceland | 1 | |
Norway | 1 |