Images shared on social media show the scale of the activity at Fuego Volcano, which has put Guatemala on alert

One of the world's most notorious volcanoes is stirring again, decades after an eruption sent a scorching cloud through a nearby city and killed nearly everyone in its path.

On land, a volcanic eruption is dramatic—columns of ash, fountains of lava, a complete remaking of the terrain. “We never know when it’s happening, even though it’s probably happening all the time,”

Quite a few volcanic eruptions have made it into the history books, though not all are made equal. After all, the effects of this volcano were felt worldwide.

Talmadge Magno, administrator of Hawaii County Civil Defense Agency, who navigated the Hawaii Island response to volcanic eruptions from multiple volcanoes, the COVID-19 pandemic, fires, earthquakes,

For around 12,000 years, the Earth has been in the Holocene epoch, a warmer period following a glacial period. During this epoch, however, there have been around 22 abrupt cold phases, each lasting up to several centuries and leading to the expansion of glaciers.