Probolinggo, Indonesia
Hindu devotees of the Tengger community ascend the active Mount Bromo volcano to present offerings of rice, fruit and livestock during the Yadnya Kasada festival.
Photograph: Juni Kriswanto/AFP/Getty Images
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#Indonesia
#festivals
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#volcanoes
#AnimalCruelty
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These stratospheric #aerosols acted as a massive planetary mirror, increasing the Earth's albedo. They scattered incoming shortwave solar radiation back into space while allowing longwave terrestrial heat to escape, causing abrupt cooling. This dimming caused widespread Eurasian crop failures for 18 months, proving that while nature has powerful levers like volcanic forcing, none are positioned to force modern temperatures upward.

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Section 5: Volcanic Aerosols and Planetary #Albedo
To understand past cooling events, like the Little Ice Age or the late antique Little Ice Age following the Roman warm period, the primary driver was stratospheric volcanism rather than a drop in solar output. Clustered massive volcanic eruptions in 536, 540, and 547 AD injected colossal volumes of sulfur dioxide directly into the stratosphere, where it oxidized into highly reflective sulfate aerosols.

The Weekly Volcanic Activity Report: May 28-June 3, 2026
New activity/unrest was reported for 3 #volcanoes from May 28-June 3, 2026. During the same period, ongoing activity was reported for 20 #volcanoes.
The Weekly Volcanic Activity Report: May 28-June 3, 2026
New article in Science
Still difficult to forecast volcanic eruptions
In a new article in the journal Science, Magnús Tumi Guðmundsson, professor of geophysics at the Institute of Earth Sciences at the University of Iceland, and Christopher J. Bean, professor at the Dublin Institute for Advanced Studies, say that despite significant advances in recent decades in monitoring #volcanoes, scientists are far from being able to forecast exactly when eruptions will start, ...
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Ashfall advisory issued as Kīlauea episode 48 begins at north vent, Hawaii
The National Weather Service (NWS) in Honolulu issued an Ashfall Advisory for Hawaiʻi #volcanoes National Park and areas to the north and northeast, including #volcano and Mountain View, after Kīlauea’s episode 48 lava fountaining began inside Halemaʻumaʻu crater on June 1, 2026.
Ashfall advisory issued as Kīlauea episode 48 begins at north vent, Hawaii
Experts warn USA’s Mount Rainier could threaten 60,000 lives in minutes
The Weekly Volcanic Activity Report: May 21-27, 2026
New activity/unrest was reported for 4 #volcanoes from May 21-27, 2026. During the same period, ongoing activity was reported for 18 #volcanoes.
The Weekly Volcanic Activity Report: May 21-27, 2026