Moist air holds heat better than dry air.
114
Carbon dioxide is a trace gas and by itself will produce little warming. Also, as CO2 increases, the incremental warming is less, as the effect is logarithmic so the more CO2, the less warming it produces.
11
Dirty snow melts faster than clean.
350
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113
The speed of a typical raindrop is 17 miles per hour.
181