By Lauren Casey

by Lauren Casey

PHILADELPHIA (CBS) — In our warming world, the overall area of North America covered by snow is decreasing.

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That is because more winter precipitation is falling as rain instead of snow.

However, locally, the trend is a bit trickier.

“Depends on where you live. I bet here in Philadelphia, mild winters would be snowier because there would be higher humidity in the air,” said Raphael Cunniff

As Raphael stated, on a local level, individual storms are trending to produce heavier snow, and it all has to do with moisture.

For every 1°F rise in temperature, the atmosphere can hold 4% more water.

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All five of Philadelphia’s highest snowfalls have occurred since 1983, and our top three since 1996.

In fact, more than 40% of U.S. counties have had their biggest two-day snow totals since 1980.

How do some feel about the prospect of snowier winters?

“No. I don’t like the snow. I don’t like the winter. I don’t like the summer either unless I’m near a pool.”

In the Great Lakes region, warming is leading to more snow in some downstream areas.

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When the lakes go longer without forming ice, it allows for increased evaporation, which yields more moisture and thus the potential for more lake-effect snow.