Weather | 2 | |
Air | 1 | |
Land Mammals | 1 | |
Land | 1 |
Human Health | 3 | |
Safety | 3 | |
Transportation | 3 | |
Energy | 2 | |
Buildings | 2 | |
Communication | 1 |
2 | 2 |
|
|
2 | 1 | 1 |
|
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|
FALL | 1 | |
SPRING | 1 | |
WINTER | 1 |