GeoLog

Atmospheric Sciences

The spectral shadow of Samalas: When climate models conjure the Earth’s forgotten fury

The spectral shadow of Samalas: When climate models conjure the Earth’s forgotten fury

This Halloween, we turn our gaze from fictional haunts to the chilling, rigorous world of paleoclimatology. The paper by Hartmann et al. (2025), published on Climate of the Past, focuses on the implementation of external forcings in a regional climate model around the 1257 CE Samalas volcanic eruption. This paper can be quite the unsettling investigation, since it treats the Earth itself as a time ...[Read More]

Ozone 101: What you need to know as the Montreal Protocol turns 35

Ozone 101: What you need to know as the Montreal Protocol turns 35

As the world commemorates the 35th anniversary of the Montreal Protocol, it’s worth taking a moment to appreciate this landmark agreement’s monumental impact on our planet. Officially known as the “Montreal Protocol on Substances That Deplete the Ozone Layer,” this treaty stands as one of the most successful environmental accords in history, showcasing what humanity can achieve when it comes ...[Read More]

The varying composition of a single bolt of lightning

The varying composition of a single bolt of lightning

Until recently, scientists assumed lightning had a homogeneous distribution of energy inside its channel. But researchers like Damien Bestard, a PhD student with the Sorbonne Université have found that the composition of each bolt is quite variable. Bestard presented his findings at the European Geosciences Union General Assembly EGU23 on Monday (April 24). As part of his research, Bestard measure ...[Read More]

Winners announced: Here are the best EGU Blog Posts of 2022!

Winners announced: Here are the best EGU Blog Posts of 2022!

As future-focused as we like to be at EGU, we sometimes pause to look back at the year gone by – just a brief glimpse to appreciate all the good work of 2022! As always, we had so many inspiring and thought-provoking blog posts published this year across the EGU’s official blog GeoLog and division blogs. Thank you to each of you for your writing contribution! To continue our annual appreciation fo ...[Read More]