But there's a reason why we could end up with different types of winter precipitation ... there's a large layer of warm air that reaches all the way down to the surface, it falls as rain.

It all comes down to air ... inside clouds where the temperature is below freezing. In fact, most precipitation that forms during the winter starts out as snow, according to the National Weather ...

The purpose of this report is to provide a review of chemical precipitation processes for the treatment of low and intermediate level aqueous waste. It supersedes Technical Reports Series No. 89, ...