An international team of scientists has found evidence connecting an unexplained period of extreme cold in ancient Rome with an unlikely source: a massive eruption of Alaska’s Okmok volcano, located on the opposite side of the Earth. Around the time of Julius Caesar’s death in 44 BCE, written sources describe a period of unusual […]
A father wakes, rolls out of bed and drops his toes to cold carpet. He grabs a flashlight and shines it outside the window. The thermometer reads 40 below zero, the only point at which the Fahrenheit and Celsius scales agree. The red liquid within his thermometer is alcohol; mercury freezes at 38 below. […]
Every Alaskan owns at least one version of a sensitive scientific instrument: the thermometer. But what is it measuring? Because hot and cold are relative terms, sometimes our senses can’t be trusted to tell us the difference. For example, a tub of ice water will feel warm if you stick your foot in it after […]
Over the past five years, winter atmospheric conditions that influence the Bering Sea have been markedly different from previous years. Strong, warm winds out of the south—sometimes lasting more than 30 days—have forced sea ice northward. Water temperatures have been warmer than normal and NOAA scientists have observed some significant changes in marine species. They […]