Water temperatures have surged above 85 degrees in the Mediterranean Sea, where records have been broken every day for weeks.

Indeed, “any scale, including Fahrenheit or Celsius or even Réaumur, can be linked to the metric system with equal ease,” wrote Eric Pinder, author of Tying Down the Wind: ...

From Celsius to Fahrenheit: Double the Celsius number and add 30. Formula: °F ≈ (°C × 2) + 30 From Fahrenheit to Celsius: Subtract 30 from Fahrenheit and divide by 2.

If anything, the Fahrenheit scale may be more accurate than Celsius – or at least, more precise.Because there are nine degrees Fahrenheit for every five Celsius, the scale “has more degrees ...