Results 41 to 50 of about 693 (129)

Heterogeneous reaction of N2O5 with airborne TiO2 particles and its implication for stratospheric particle injection [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Injection of aerosol particles (or their precursors) into the stratosphere to scatter solar radiation back into space has been suggested as a solar-radiation management scheme for the mitigation of global warming.
M. J. Tang   +11 more
doaj   +1 more source

A 400‐Year Antarctic Ice‐Core Perchlorate Record Reveals Variability in Stratospheric Chlorine Chemistry

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Perchlorate (ClO4−) in polar ice preserves past chlorine oxidation chemistry; however, multi‐centennial Antarctic ClO4− records and the mechanisms controlling their variability remain poorly constrained. Here, we present the first 400‐year (1616−2016) ClO4− record from an Antarctic ice core, revealing two regimes separated around 1980.
Wenzhi Zhou   +6 more
wiley   +1 more source

Attributing the Stratospheric Impacts From the Water‐Rich Explosive Hunga Volcanic Eruption of 2022

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract The January 2022 Hunga volcanic eruption injected an unprecedented ∼150 Tg of water vapor (H2 ${\mathrm{H}}_{2}$O) and ∼0.4 Tg of sulfur dioxide (SO2 ${\text{SO}}_{2}$) into the stratosphere. Observational studies confirm that this perturbation triggered significant changes in stratospheric composition and dynamics.
Freja F. Østerstrøm   +4 more
wiley   +1 more source

Stratospheric transport and tropospheric sink of solar geoengineering aerosol: a Lagrangian analysis

open access: yesnpj Climate and Atmospheric Science
Stratospheric aerosol injection (SAI) aims to reflect solar radiation by increasing the stratospheric aerosol burden. To understand how the background circulation influences stratospheric transport of injected particles, we use a Lagrangian trajectory ...
Hongwei Sun   +3 more
doaj   +1 more source

Perfluorohexanone for Clean Fire Suppression: Mechanisms, System Design, Applications, and Future Directions

open access: yesSafety Science and Technology, Volume 1, Issue 3, September 2026.
Driven by halon and high GWP agent phase out, perfluorohexanone is increasingly deployed in enclosures such as data centers, marine machinery spaces, and industrial process lines. This review summarizes application performance, discharge and distribution design, material compatibility, and byproduct control and maps practical gaps for large volume and ...
Zhilei Yu   +8 more
wiley   +1 more source

Quantifying the Impact of Internal Variability on the CESM2 Control Algorithm for Stratospheric Aerosol Injection

open access: yesEarth's Future
Earth system models are powerful tools to simulate the climate response to hypothetical climate intervention strategies, such as stratospheric aerosol injection (SAI).
Charlotte Connolly   +3 more
doaj   +1 more source

Research Priorities for Robust Climate Assessments in the United States

open access: yesEarth's Future, Volume 14, Issue 9, September 2026.
Abstract Scientific assessments play a critical role in synthesizing evidence to support evidence‐based decision‐making in many sectors and topics. For climate change, large‐scale assessments like the Intergovernmental Panel on Climate Change (IPCC) and the United States (U.S.) National Climate Assessment (NCA) reports help many different users—from ...
Melissa A. Kenney   +174 more
wiley   +1 more source

Pandemic politics—lessons for solar geoengineering

open access: yesCommunications Earth & Environment, 2020
Responses to the COVID-19 emergency have exposed break-points at the interface of science, media, and policy. We summarize five lessons that should be heeded if climate change ever enters a state of emergency perceived to warrant stratospheric aerosol ...
Holly Buck   +3 more
doaj   +1 more source

Simultaneous Megapluvials in Southwestern North and South America During the Last Millennium

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 9, September 2026.
Abstract Earth's climate has experienced prolonged hydroclimatic extreme events that can manifest decadal or longer anomalies. Such events can shape ecological systems and human societies. Decadal‐scale droughts, megadroughts, occurred in southwestern North and South America (North American Southwest, NASW; South American Southwest, SASW) over the past
Ehud Berger   +3 more
wiley   +1 more source

Inside the Fire Plume Chemical Interactions: A Review on Key Processes and Future Directions

open access: yesReviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Fire plumes are rising columns of heated air masses, consisting of gaseous and particulate matter generated by combustion, affecting air quality, climate and public health. The chemical species released undergo secondary reactions and participate in chemical and physical interactions, altering the properties of the fire plume.
E. Dovrou, A. Voulgarakis
wiley   +1 more source

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