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Open AccessThe projected future degradation in air quality is caused by more abundant natural aerosols in a warmer world
Previous studies suggest that greenhouse gas-induced warming can lead to increased fine particulate matter concentrations and degraded air quality. However, significant uncertainties remain regarding the sign ...
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Article
Open AccessUsing modelled relationships and satellite observations to attribute modelled aerosol biases over biomass burning regions
Biomass burning (BB) is a major source of aerosols that remain the most uncertain components of the global radiative forcing. Current global models have great difficulty matching observed aerosol optical depth...
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Open AccessClean air policies are key for successfully mitigating Arctic warming
A tighter integration of modeling frameworks for climate and air quality is urgently needed to assess the impacts of clean air policies on future Arctic and global climate. We combined a new model emulator and...
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Open AccessChemical transport models often underestimate inorganic aerosol acidity in remote regions of the atmosphere
The inorganic fraction of fine particles affects numerous physicochemical processes in the atmosphere. However, there is large uncertainty in its burden and composition due to limited global measurements. Here...
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Open AccessThe Toba supervolcano eruption caused severe tropical stratospheric ozone depletion
Supervolcano eruptions have occurred throughout Earth’s history and have major environmental impacts. These impacts are mostly associated with the attenuation of visible sunlight by stratospheric sulfate aeros...
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The Present and Future of Secondary Organic Aerosol Direct Forcing on Climate
Secondary organic aerosols (SOA), a subset of organic aerosols that are chemically produced in the atmosphere, are included in climate modeling calculations using very simple parameterizations. Estimates on th...
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Role of atmospheric chemistry in the climate impacts of stratospheric volcanic injections
Volcanic eruptions can release large amounts of climatically active gases. An emerging view stresses the role of the size and chemical composition of the plume, including its water content, in controlling the ...
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Reconciling warming trends
Climate models projected stronger warming over the past 15 years than has been seen in observations. Conspiring factors of errors in volcanic and solar inputs, representations of aerosols, and El Niño evolutio...
