Tag

Volcanic Eruptions

All articles tagged with #volcanic eruptions

science1 month ago•55 min saved

Global warming rewires the Pacific-Indian Ocean climate link

A Nature Communications study shows the Pacific Walker circulation's influence on Indian Ocean temperatures has weakened and reversed in recent decades due to human-caused warming, meaning tropical ocean relationships once used for climate prediction are shifting; the researchers reconstructed Indo-Pacific patterns from 1631 to 1990 using coral, tree rings, and a stalagmite, and while the 19th‑century volcanic era briefly disrupted the link, today’s warming signals a lasting change with implications for climate predictability and regional water management.

via Yahoo|

#climate-change #indian-ocean-basin-mode #pacific-walker-circulation

science5 months ago•3 min saved

Ancient volcanic bursts reveal AMOC’s vulnerability to climate disturbance

New research links the Younger Dryas cooling (12,900–11,700 years ago) to a cluster of volcanic eruptions that disrupted the Atlantic Meridional Overturning Circulation, showing the AMOC’s sensitivity to disturbances; today, scientists warn that the AMOC could weaken or collapse due to human-caused CO2, but volcanic activity is not the immediate threat, highlighting how rapid climate shifts could arise if this ocean conveyor belt slows.

via USA Today|

#amoc #atlantic-ocean #climate-change

history9 months ago•5 min saved

Volcanic Eruptions May Have Triggered Historic Pandemics

A new study suggests that volcanic eruptions caused climate cooling in 1345-1346, disrupting harvests across Europe, which, combined with geopolitical factors, facilitated the rapid spread of the Black Death through trade routes, highlighting climate's role in historical pandemics.

via Earth.com|

#black-death #climate-change #history

science9 months ago•3 min saved

Microbes Rapidly Colonize Fresh Icelandic Lava, Offering Insights Into Extraterrestrial Life

Scientists have discovered that microbes can rapidly colonize freshly cooled lava within hours of solidification, demonstrating remarkable resilience and adaptability in extreme environments, with implications for understanding life's potential on other planets like Mars.

via Gizmodo|

#lava #microbes #microbial-colonization

history9 months ago•5 min saved

Volcanic Eruptions May Have Triggered the Deadliest Plague in History

A new study suggests that volcanic eruptions caused climate cooling in 1345-1346, disrupting harvests across Europe, which, combined with geopolitical tensions and trade routes reopening, facilitated the rapid spread of the Black Death through fleas on grain shipments, highlighting climate as a key factor in the pandemic's swift progression.

via Earth.com|

#black-death #climate-change #history

science11 months ago•3 min saved

Martian Volcanoes and Ice Deposits: Unveiling the Red Planet's Climate History

Ancient volcanic eruptions on Mars may have released water vapor that froze into ice, potentially creating significant underground ice deposits near the equator, which could be valuable for future human exploration. The study suggests repeated eruptions over millions of years could have contributed to these ice deposits, although further research is needed to confirm their presence and composition.

via Space|

#equator #ice-deposits #mars

science1 year ago•4 min saved

Japan's Aso Caldera: The World's Most Dangerous Supervolcano

Aso Caldera in Japan is a massive, active supervolcano with a history of catastrophic eruptions, housing 17 volcanoes within its 15-mile-wide caldera, and poses ongoing geological and volcanic risks due to its active magma chamber and fault lines.

via Indian Defence Review|

#aso-caldera #geology #japan

science1 year ago•1 min saved

Scientists uncover reasons behind Earth's ancient global freeze

About 700 million years ago, Earth may have entered a global ice age, or 'Snowball Earth,' due to a combination of cold climate, massive volcanic eruptions, and lack of vegetation, which led to rapid erosion and significant reduction of atmospheric CO2, triggering widespread glaciation.

via The Guardian|

#carbon-dioxide #climate-change #earth-history

science1 year ago•2 min saved

Scientists Uncover Deep Earth 'Blobs' That Could Trigger Major Volcanic Eruptions

Recent research reveals that mysterious structures called BLOBS in Earth's lower mantle are linked to volcanic eruptions, acting as 'magma highways' that influence mantle plumes and potentially trigger catastrophic eruptions, with these structures possibly shifting over time due to mantle convection.

via The Daily Galaxy|

#blobs #earths-interior #geology

science1 year ago•3 min saved

Hidden Earth 'Blobs' May Trigger Catastrophic Volcanic Eruptions

New research suggests that mysterious structures called 'BLOBS' deep within Earth's lower mantle influence volcanic eruptions by acting as sources of mantle plumes, which can lead to catastrophic eruptions. These BLOBS are located under Africa and the Pacific and may move over time, affecting surface volcanic activity and potentially aiding in mineral discovery. The study enhances understanding of the dynamic processes inside Earth that drive volcanic hazards.

via ScienceAlert|

#blobs #earths-interior #geology

environment1 year ago•4 min saved

Yellowstone's New Geologic Unit Sparks Eruption Mystery

Recent geological research in Yellowstone National Park has identified a previously unrecognized volcanic unit, a vitrophyre, which challenges existing maps and understanding of the park's eruptive history, suggesting that smaller, explosive eruptions may have been more frequent than previously thought.

via Idaho Capital Sun|

#environment #geology #mount-jackson-rhyolite-series

science1 year ago•2 min saved

Melting Glaciers May Trigger Global Volcano Eruptions, Scientists Warn

Scientists warn that melting glaciers due to climate change could trigger increased volcanic eruptions worldwide, especially in regions like Antarctica, which could further impact global warming through greenhouse gas emissions from eruptions, creating a feedback loop.

via Gizmodo|

#antarctica #climate-change #geology

science1 year ago•3 min saved

Melting Glaciers May Trigger Increased Global Volcanic Activity

A study suggests that melting glaciers and ice caps due to climate change could trigger increased volcanic activity by releasing pressure on magma chambers, potentially leading to more frequent and explosive eruptions, especially in regions like Antarctica and the Andes, which could further exacerbate global warming.

via The Guardian|

#climate-change #glacier-melting #global-warming

science1 year ago•3 min saved

Melting Glaciers May Trigger Global Volcanic Eruptions, Study Warns

Melting glaciers due to climate change are likely to increase the frequency and explosiveness of volcanic eruptions worldwide, as evidenced by studies of volcanoes in Chile and historical data from Iceland, potentially creating a feedback loop that accelerates global warming.

via Live Science|

#antarctica #chile #climate-change

science1 year ago•4 min saved

NASA Finds Venus Is Geologically Active

NASA's recent analysis of radar and gravity data from the Magellan orbiter reveals that Venus, often considered geologically dead, is still active with ongoing tectonic and volcanic processes, challenging previous assumptions about the planet's inactivity and offering insights into planetary evolution.

via Earth.com|

#geological-activity #magellan-orbiter #planetary-geology