Bowman, Daniel C.; Norman, Paul E.; Pauken, Michael T.; Albert, Sarah A.; Dexheimer, Darielle; Yang, Xiao et al. (2020): Multihour Stratospheric Flights with the Heliotrope Solar Hot-Air Balloon. In Journal of Atmospheric and Oceanic Technology 37 (6), pp. 1051–1066. DOI: 10.1175/JTECH-D-19-0175.1.

"We have developed a solar-powered hot-air balloon named the heliotrope that can maintain a nearly constant altitude in the upper troposphere–lower stratosphere as long as the sun is above the horizon."

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Tilmes, Simone; MacMartin, Douglas G.; Lenaerts, Jan T. M.; van Kampenhout, Leo; Muntjewerf, Laura; Xia, Lili et al. (2020): Reaching 1.5 and 2.0 °C global surface temperature targets using stratospheric aerosol geoengineering. In Earth Syst. Dynam. 11 (3), pp. 579–601. DOI: 10.5194/esd-11-579-2020.

"A new set of stratospheric aerosol geoengineering (SAG) model experiments has been performed with Community Earth System Model version 2 (CESM2) with the Whole Atmosphere Community Climate Model (WACCM6) that are based on the Coupled Model Intercomparison Project phase 6 (CMIP6) overshoot scenario (SSP5-34-OS) as a baseline scenario to limit global warming to 1.5 or 2.0 ^∘C above 1850–1900 conditions. The overshoot scenario allows us to applying a peak-shaving scenario that reduces the needed duration and amount of SAG application compared to a high forcing scenario."

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Neuber, Frederike; Ott, Konrad (2020): The Buying Time Argument within the Solar Radiation Management Discourse. In Applied Sciences 10 (13), p. 4637. DOI: 10.3390/app10134637.

"In this article, we will establish a version of the buying time argument (BTA) in favor of Sulphur Aerosol Injection (SAI) Climate Engineering (CE). The idea is not to promote the deployment of such scheme, but rather to present the strongest possible argument pro SAI in order to look at its presuppositions, implications, critical points and uncertainties."

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Singh, Jyoti; Sahany, Sandeep; Robock, Alan (2020): Can stratospheric geoengineering alleviate global warming-induced changes in deciduous fruit cultivation? The case of Himachal Pradesh (India). In Climatic Change. DOI: 10.1007/s10584-020-02786-3.

"Using Hadley Global Environment Model 2 - Earth System and Max Planck Institute Earth System Model simulations, we assess the impact of global warming and stratospheric geoengineering on deciduous fruit production in Himachal Pradesh (the second-largest apple-producing state in India). The impacts have been assessed for the Representative Concentration Pathways 4.5 (RCP4.5) global warming scenario, and a corresponding geoengineered scenario (G3) from the Geoengineering Model Intercomparison Project, in which stratospheric aerosols are increased for 50 years from 2020 through 2069 to balance the global warming radiative forcing, and then aerosol precursor emissions are terminated."

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