Efficient formation of stratospheric aerosol for climate engineering by emission of condensible vapor from aircraft

  title={Efficient formation of stratospheric aerosol for climate engineering by emission of condensible vapor from aircraft},
  author={Jeffrey R. Pierce and Debra K. Weisenstein and Patricia Heckendorn and Thomas Peter and David William Keith},
  journal={Geophysical Research Letters},
Recent analysis suggests that the effectiveness of stratospheric aerosol climate engineering through emission of non‐condensable vapors such as SO2 is limited because the slow conversion to H2SO4 tends to produce aerosol particles that are too large; SO2 injection may be so inefficient that it is difficult to counteract the radiative forcing due to a CO2 doubling. Here we describe an alternate method in which aerosol is formed rapidly in the plume following injection of H2SO4, a condensable… 

What is the limit of climate engineering by stratospheric injection of SO 2

Abstract. The injection of sulfur dioxide (SO2) into the stratosphere to form an artificial stratospheric aerosol layer is discussed as an option for solar radiation management. The related reduction

Production of Sulfates Onboard an Aircraft: Implications for the Cost and Feasibility of Stratospheric Solar Geoengineering

Injection of sulfate aerosols into the stratosphere, a form of solar geoengineering, has been proposed as a means to reduce some climatic changes by decreasing net anthropogenic radiative forcing.

Climate engineering with stratospheric sulphate aerosol : development and application of a global atmosphere-aerosol model for studying potential efficacy and impacts

The enhancement of the stratospheric sulphate aerosol layer has been proposed as a method to abate the global warming caused by anthropogenic greenhouse gas emissions. In this thesis we present a

An interactive stratospheric aerosol model intercomparison of solar geoengineering by stratospheric injection of SO<sub>2</sub> or accumulation-mode sulfuric acid aerosols

Abstract. Studies of stratospheric solar geoengineering have tended to focus on modification of the sulfuric acid aerosol layer, and almost all climate model experiments that mechanistically increase

An Aerosol-Climate Model Intercomparison of Stratospheric Solar Geoengineering by Injection of SO2 or Accumulation-Mode Sulfuric Acid Aerosols

Studies of stratospheric solar geoengineering have tended to focus on sulfuric acid aerosols, and almost all such climate model experiments assume that SO2 is injected to increase the sulfuric acid

Sensitivity of the radiative forcing by stratospheric sulfur geoengineering to the amount and strategy of the SO 2 injection studied with the LMDZ-S3A model

Abstract. The enhancement of the stratospheric sulfate aerosol layer has been proposed as a method of geoengineering to abate global warming. Previous modelling studies found that stratospheric

Stratospheric Aerosols for Solar Radiation Management

SRM in the context of this entry involves placing a large amount of aerosols in the stratosphere to reduce the amount of solar radiation reaching the surface, thereby cooling the surface and

Radiative and climate effects of stratospheric sulfur geoengineering using seasonally varying injection areas

Abstract. Stratospheric sulfur injections have often been suggested as a cost-effective geoengineering method to prevent or slow down global warming. In geoengineering studies, these injections are

Aerosol Dynamics in the Near Field of the SCoPEx Stratospheric Balloon Experiment

Stratospheric aerosol injection (SAI) might alleviate some climate risks associated with accumulating greenhouse gases. Reduction of specific process uncertainties relevant to the distribution of

Changing transport processes in the stratosphere by radiative heating of sulfate aerosols

Abstract. The injection of sulfur dioxide (SO2) into the stratosphere to form an artificial stratospheric aerosol layer is discussed as an option for solar radiation management. Sulfate aerosol



The impact of geoengineering aerosols on stratospheric temperature and ozone

Anthropogenic greenhouse gas emissions are warming the global climate at an unprecedented rate. Significant emission reductions will be required soon to avoid a rapid temperature rise. As a potential

Exploring the geoengineering of climate using stratospheric sulfate aerosols: The role of particle size

Aerosols produced in the lower stratosphere can brighten the planet and counteract some of the effects of global warming. We explore scenarios in which the amount of precursors and the size of the

Regional climate responses to geoengineering with tropical and Arctic SO2 injections

[1] Anthropogenic stratospheric aerosol production, so as to reduce solar insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response to global

An overview of geoengineering of climate using stratospheric sulphate aerosols

  • P. RaschS. Tilmes R. Garcia
  • Environmental Science
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2008
An overview of geoengineering by stratospheric sulphate aerosols is provided, summarizing the past 30 years of work, highlighting some very recent studies using climate models, and discussing methods used to deliver sulphur species to the stratosphere.

Estimates of the Climatic Impact of Aerosols Produced by Space Shuttles, SST's, and other High Flying Aircraft

Abstract Aircraft and Space Shuttles flying through the stratosphere over the next several decades will add sulfuric acid and aluminum oxide particles, respectively, to this region of the atmosphere.

The Sensitivity of Polar Ozone Depletion to Proposed Geoengineering Schemes

An injection of sulfur large enough to compensate for surface warming caused by the doubling of atmospheric CO2 would strongly increase the extent of Arctic ozone depletion during the present century for cold winters and would cause a considerable delay in the expected recovery of the Antarctic ozone hole.

Impact of geoengineered aerosols on the troposphere and stratosphere

A coupled chemistry climate model, the Whole Atmosphere Community Climate Model was used to perform a transient climate simulation to quantify the impact of geoengineered aerosols on atmospheric

Transient climate–carbon simulations of planetary geoengineering

It is found that the climate system responds quickly to artificially reduced insolation; hence, there may be little cost to delaying the deployment of geoengineering strategies until such a time as “dangerous” climate change is imminent.

Particle size distributions in an expanding plume undergoing simultaneous coagulation and condensation

In previous work [Turco and Yu, 1997, 1998], analytical solutions of the equations describing aerosol coagulation in an expanding plume were derived. Those solutions were shown to depend on a single