#Juneau’s record glacial outburst flood prompts evacuations and destroys at least 1 home

August 5, 2023 by Anna Canny, KTOO

"The source of this weekend’s #flooding is a #glacial dam outburst flood from #SuicideBasin, above the #MendenhallGlacier. An update from the National Weather Service described record flooding of waterways and low-lying areas, along with flooding 'in areas that have not previously seen flooding before.'"

https://www.ktoo.org/2023/08/05/city-recommends-evacuations-as-juneau-sees-record-flooding-from-glacial-outburst-flood/

#Glaciers #GlacialMelting #ClimateChange #ClimateCrisis #ClimateCatastrophe #Alaska #JuneauAlaska

How #ClimateChange impacts #volcanic activity

By Jane Marsh on March 1, 2022

"Researchers at Leeds wanted to understand how the pressure exerted by Earth’s #glaciers onto the crust impacts movements below the surface. This process, known as 'surface loading,' can change the flow of magma and thus lead to more volcanic activity.

"The study, which took place in 2017, looked back at the activity of #Iceland’s many #volcanoes 4500 to 5500 years ago, when Earth was still recovering from the latest Ice Age.

"Based on the amount of ash deposited in the surrounding area, they concluded that the island’s volcanoes became more active and extreme as more ice melted.

"While they’re unsure of the details, the mechanics that explain this phenomenon are straightforward. Glaciers put immense pressure on the Earth’s surface, restricting the flow of magma. When the glaciers melt, magma can move more freely, bubbling to the surface and erupting more easily.

"The Cambridge study, released in 2021, suggests that climate change will transform the cooling effects of volcanic eruptions. As the atmosphere warms, the smoke and fumes from eruptions will be able to rise higher. The fumes might also travel farther, affecting regions half a world away."

Read more:
https://www.sustainability-times.com/environmental-protection/how-climate-change-impacts-volcanic-activity/

#ClimateCatastrophe #Volcano #Geology #GlacialMelting

#ClimateChange will increase impacts of #volcanic eruptions

June 28, 2023, Portland State University

"Volcanic disasters have been studied since Pompeii was buried in 79 A.D., leading the public to believe that scientists already know why, where, when and how long volcanoes will erupt. But a volcanologist said these fundamental questions remain a mystery."

However, we do know that, "#SeaLevel rise, #GlacialMelting, #aquifer depletion, and #mountain #erosion can all affect the likelihood and frequency of volcanic eruptions."

#ClimateCrisis #ClimateCatastrophe #Volcanoes

https://www.sciencedaily.com/releases/2023/06/230628131038.htm