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Article
Open AccessImpact of industrial versus biomass burning aerosols on the Atlantic Meridional Overturning Circulation
The ocean’s major circulation system, the Atlantic Meridional Overturning Circulation (AMOC), is slowing down. Such weakening is consistent with warming associated with increasing greenhouse gases, as well as ...
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Article
Open AccessEnhanced future vegetation growth with elevated carbon dioxide concentrations could increase fire activity
Many regions of the planet have experienced an increase in fire activity in recent decades. Although such increases are consistent with warming and drying under continued climate change, the driving mechanisms...
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Article
Ocean heat uptake and interbasin redistribution driven by anthropogenic aerosols and greenhouse gases
Anthropogenic aerosols and greenhouse gases have played important roles in modulating the storage and distribution of heat in oceans since the industrial age. Here we isolate and quantify the effects of both u...
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Article
Open AccessSurface warming and wetting due to methane’s long-wave radiative effects muted by short-wave absorption
Although greenhouse gases absorb primarily long-wave radiation, they also absorb short-wave radiation. Recent studies have highlighted the importance of methane short-wave absorption, which enhances its strato...
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Article
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 AccessAir quality improvements are projected to weaken the Atlantic meridional overturning circulation through radiative forcing effects
Observations indicate the Atlantic Meridional Overturning Circulation-a fundamental component of the ocean’s global conveyor belt-is weakening. Although causes remain uncertain, such weakening is consistent wi...
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Article
Open AccessObservationally constrained aerosol–cloud semi-direct effects
Absorbing aerosols, like black carbon (BC), give rise to rapid adjustments, and the associated perturbation to the atmospheric temperature structure alters the cloud distribution. The level of scientific under...
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Article
Enhanced land–sea warming contrast elevates aerosol pollution in a warmer world
Many climate models simulate an increase in anthropogenic aerosol species in response to warming1, particularly over the Northern Hemisphere mid-latitudes during June, July and August. Recently, it has been argue...
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Article
Open Access21st century California drought risk linked to model fidelity of the El Niño teleconnection
Greenhouse gas induced climate change is expected to lead to negative hydrological impacts for southwestern North America, including California (CA). This includes a decrease in the amount and frequency of pre...
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Article
Open AccessEl Niño-like teleconnection increases California precipitation in response to warming
Future California (CA) precipitation projections, including those from the most recent Climate Model Intercomparison Project (CMIP5), remain uncertain. This uncertainty is related to several factors, including...
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Article
Evidence for climate change in the satellite cloud record
Satellite records show that the global pattern of cloud changes between the 1980s and the 2000s are similar to the patterns predicted by models of climate with recent external radiative forcing, and that the p...
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Article
An increase in aerosol burden and radiative effects in a warmer world
Modelling allows estimation of aerosol–climate feedbacks on the Earth’s radiative balance and suggests that climate change may increase aerosol burden and surface concentration, negatively affecting future air...
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Article
Influence of anthropogenic aerosols and the Pacific Decadal Oscillation on tropical belt width
The tropical belt has expanded by several degrees latitude over the past 30 years, following an earlier period of contraction. Climate simulations indicate that tropical belt width is controlled by multidecada...
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Article
Recent Northern Hemisphere tropical expansion primarily driven by black carbon and tropospheric ozone
The primary drivers of the Northern Hemisphere expansion of the tropical climate zone over the past several decades are shown to be the recent increases in black carbon aerosols and tropospheric ozone rather t...
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Article
Open AccessThe impact of natural versus anthropogenic aerosols on atmospheric circulation in the Community Atmosphere Model
The equilibrium response of atmospheric circulation to the direct radiative effects of natural or anthropogenic aerosols is investigated using the Community Atmosphere Model (CAM3) coupled to two different oce...
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Autogenous Augmentation Mammaplasty with Microsurgical Tissue Transfer
The Mentor study found reoperation rates of breast augmentation procedures of 25% at 7 years. The benefits of autogenous tissue that have been learned from breast reconstruction can also be applied to breast a...
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Article
Warming maximum in the tropical upper troposphere deduced from thermal winds
Climate models and theoretical expectations have predicted that the upper troposphere should be warming faster than the surface. Surprisingly, direct temperature observations from radiosonde and satellite data...
