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Volcanic Co2 Emissions

All articles tagged with #volcanic co2 emissions

earth-science1 year ago•4 min saved

Unraveling the 700-Million-Year-Old Mystery of Earth's Snowball Transformation

Australian geologists have unraveled the mystery behind a 700-million-year-old extreme ice age, identifying historically low volcanic carbon dioxide emissions and rock weathering in Canada as key factors. Their research sheds light on Earth's climate sensitivity and natural thermostat mechanisms, highlighting the contrast between slow geological climate change and the rapid changes driven by human activities. The study, published in Geology, provides insights into the Earth's long-term future and emphasizes the significant pace of human-induced climate change compared to geological climate change.

via SciTechDaily|

#climate-change #earth-science #geology

earth-science1 year ago•3 min saved

"Unraveling the Mystery of Earth's Ancient Snowball State"

Australian geologists have uncovered the cause of the "Snowball Earth" event over 700 million years ago, attributing it to historically low volcanic carbon dioxide emissions and weathering of volcanic rock in present-day Canada. This prolonged ice age, known as the Sturtian glaciation, occurred before the age of dinosaurs and complex terrestrial plant life, and its duration of 57 million years has been a longstanding mystery. The research highlights the intricate interplay between geological processes and climate dynamics, offering insights into Earth's ancient past and its potential future climate shifts.

via Earth.com|

#earth-science #earths-ancient-past #geological-climate-change

science1 year ago•4 min saved

Unveiling the Mystery of Earth's Ancient Snowball Phase

Australian geologists have determined that historically low volcanic carbon dioxide emissions, aided by weathering of a large pile of volcanic rocks in what is now Canada, caused an extreme ice-age climate on Earth more than 700 million years ago. The 57 million year ice age, known as the Sturtian glaciation, was triggered by a plate tectonic reorganization that minimized volcanic degassing and eroded away a continental volcanic province, leading to atmospheric CO2 levels falling below 200 parts per million. This study sheds light on the Earth's built-in thermostat and the sensitivity of global climate to atmospheric carbon concentration, raising intriguing questions about Earth's long-term future.

via Phys.org|

#climate-change #earth #geology