Summertime

K-Dog · Jul 13, 2025, 05:47 PM

The "7% for every 1°C" rule (sometimes cited as 6-7%) is an empirical observation derived from the Clausius-Clapeyron equation. When you plug in the relevant physical constants for water (like the latent heat of vaporization) and consider typical atmospheric temperatures, the equation shows that saturation vapor pressure indeed increases by roughly this percentage for each degree Celsius of warming.

Which at the end of the day leads to some crazy weather. These images from China are unbelievable.

Summertime

K-Dog

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