Weather | 4 |
Energy | 2 | |
Safety | 2 | |
Human Health | 1 | |
Buildings | 1 | |
Transportation | 1 |
3 | 1 |
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1 | 1 | 2 |
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WINTER | 2 | |
FALL | 1 |
Canada | 2 | |
United States | 1 |