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Climate and volcanism

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Climate and volcanism is the study of the interactions between volcanic activity and climate systems. It examines how volcanic eruptions influence atmospheric conditions, such as temperature and precipitation, and conversely, how climate changes can affect volcanic processes and eruption frequency.
lightbulbAbout this topic
Climate and volcanism is the study of the interactions between volcanic activity and climate systems. It examines how volcanic eruptions influence atmospheric conditions, such as temperature and precipitation, and conversely, how climate changes can affect volcanic processes and eruption frequency.

Key research themes

1. How can improved chronologies enhance the understanding of volcanic forcing on climate variability over the past millennia?

Research in this area focuses on refining the timing and magnitude of volcanic eruptions and their direct climate impacts, particularly using high-resolution proxies and cross-disciplinary age markers. Precise synchronization of volcanic aerosol loading records with tree-ring and ice-core data addresses prior chronological mismatches that have complicated attribution of climate variability to volcanic forcing. Understanding eruption timing within annual accuracy is crucial for accurately modeling the cooling duration, intensity, and socio-historical consequences of volcanic events.

Key finding: Utilizing high-resolution, multi-parameter ice-core measurements and globally synchronized age markers such as rapid 14C increases in tree rings from the 775 and 994 CE events, this paper resolved a previously identified... Read more
Key finding: By analyzing historical records of total lunar eclipses as proxies for stratospheric volcanic dust veils during the High Medieval Period (1100–1300 CE), the study independently refined dating of five major eruptions. This... Read more
Key finding: Through a comprehensive review of observational records, proxy data, and climate model simulations, this study highlighted the differential climatic responses to explosive tropical eruptions on modes such as the North... Read more
Key finding: This paper developed an ensemble summer temperature reconstruction from nine updated Northern Hemisphere tree-ring width datasets spanning 1 to 2010 CE, providing robust quantification of volcanic forcing impacts. It revealed... Read more

2. What are the consequences of Large Igneous Province emplacement on global climate and mass extinctions during the Phanerozoic?

This research theme investigates the complex environmental impacts associated with Large Igneous Province (LIP) events, including massive volcanic degassing, climate warming and cooling phases, oceanic anoxia, and biotic crises. By integrating high-precision geochronology with geochemical and paleontological records, this work elucidates how the rate of magmatic effusion, volatile release, and interactions with sedimentary basins influence global climate perturbations and mass extinction causal pathways. Understanding LIPs provides essential insight into the links between deep Earth magmatism and surface environmental changes across geological timescales.

Key finding: Synthesizing geochronological and geochemical evidence, this paper establishes that LIPs, through rapid emplacement of flood basalts and associated volatile release—particularly CO2 and sulfate aerosol—have triggered major... Read more
Key finding: By analyzing Hg/TOC ratios and carbon isotope excursions in Arctic boreal sediments, this study identifies pulses of volcanic activity coincident with global carbon cycle perturbations, including the Weissert Event and the... Read more
Key finding: This comprehensive review challenges simplistic causal attributions of Phanerozoic mass extinctions to large impact events alone by demonstrating that only the K/T impact coincides conclusively with a major extinction.... Read more

3. How does volcanism interact with major climate modes, and what feedbacks exist between volcanic activity, magmatism, and climate across different timescales?

This theme encompasses studies that explore the dynamic feedback loops between volcanic eruptions, magmatic processes, and Earth's climate systems, including major climate phenomena such as ENSO and hemispheric temperature patterns. It covers modeling the climatic response to volcanic aerosols, observed climate variability linked to volcanic activity, and magmatic feedback mechanisms influenced by surface conditions like glaciation and erosion. Such investigations seek to quantify volcanic contributions to both short-term climate variability and long-term climate transitions.

Key finding: Using coupled climate model simulations (CCSM3), this study found that volcanic aerosol radiative forcing initiates a La Niña-like cooling during the peak forcing period by altering wind stress patterns, which subsequently... Read more
Key finding: By incorporating sixty stochastically sampled plausible volcanic forcings derived from ice-core records into Norwegian Earth System Model projections under RCP4.5, this study demonstrated that volcanic activity significantly... Read more
Key finding: This study advances the understanding of surface-deep Earth coupling by proposing that magmatic degassing changes, notably extinction of Neo-Tethyan volcanic arcs in the early-middle Cenozoic, contributed to atmospheric... Read more

All papers in Climate and volcanism

The United Nations Conference on Environment and Development (the Rio de Janeiro Earth Summit, UNCED), Rio de Janeiro, Brazil, held 3rd-14th June 1992, launched the United Nations Framework Convention on Climate Change (UNFCCC) which... more
Inhalt / Contents / Contenu
Zusammenfassung aller Beiträge / Summary of all contributions / Résumé de tous les contributions
Large explosive eruptions inject volcanic gases and fine ash to stratospheric altitudes, contributing to global cooling at the Earth's surface and occasionally to ozone depletion. The modelling of the climate response to these strong... more
"The implications of global warming have become increasingly clear. Yet, great inconsistencies are emerging amongst the world’s nations as to their policy responses to the perceived threats from global warming and other environmental... more
Large explosive eruptions inject volcanic gases and fine ash to stratospheric altitudes, contributing to global cooling at the Earth's surface and occasionally to ozone depletion. The modelling of the climate response to these strong... more
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