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NOAA names 2020 second-hottest year on record; NASA says it tied for hottest ever

Every January we get a series of notices from different climate agencies about how the recently-ended year’s climate compares to previous years. Since each agency calculates the global average temperature in a slightly different way, it’s really no surprise that they don’t always agree on the exact temperature value and…
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What is graupel?

Snow comes in many different forms. The most familiar to us are dendrites, what we usually see in Christmas cards and in paper cutouts our kids make. Dendrites form in a very specific set of temperature and humidity conditions that only occur at some places in the atmosphere. But snow…
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