CO₂-removal News

Anand, S.; Mayya, Y. S. (2015): Comment on „Reduced efficacy of marine cloud brightening geoengineering due to in-plume aerosol coagulation: parameterization and global implications“

Anand, S.; Mayya, Y. S. (2015): Comment on „Reduced efficacy of marine cloud brightening geoengineering due to in-plume aerosol coagulation: parameterization and global implications“ by Stuart et al. (2013). In Atmos. Chem. Phys. 15 (2), pp. 753–756. DOI 10.5194/acp-15-753-2015.

Response to Stuart et al. (2013). „We examine the parameterized model of Stuart et al. (2013) vis-à-vis a diffusion-based model proposed by us earlier (Anand and Mayya, 2011) to estimate the fraction of aerosol particles surviving coagulation in a dispersing plume. While the Stuart et al. approach is based on the solutions to the coagulation problem in an expanding plume model, the diffusion-based approach solves the diffusion–coagulation equation for a steady-state standing plume to arrive at the survival fraction correlations.

Link

Reynolds, Jesse (2015): Why the UNFCCC and CBD Should Refrain from Regulating Solar Climate Engineering

Reynolds, Jesse (2015): Why the UNFCCC and CBD Should Refrain from Regulating Solar Climate Engineering (Geoengineering Our Climate? Working Paper and Opinion Article Series).

„However, I believe that it would be counterproductive to pursue binding regulation of SRM in international forums with (near-)universal participation, and in those of the UNFCCC and CBD specifically, at least for the foreseeable future. In general, it is too soon to initiate global negotiations toward a binding agreement.“

Link

Tilmes, S.; et al. (2015): A new Geoengineering Model Intercomparison Project (GeoMIP) experiment designed for climate and chemistry models

Tilmes, S.; Mills, M. J.; Niemeier, U.; Schmidt, H.; Robock, A.; Kravitz, B. et al. (2015): A new Geoengineering Model Intercomparison Project (GeoMIP) experiment designed for climate and chemistry models. In Geosci. Model Dev. 8 (1), pp. 43–49. DOI 10.5194/gmd-8-43-2015.

A new Geoengineering Model Intercomparison Project (GeoMIP) experiment „G4 specified stratospheric aerosols“ (short name: G4SSA) is proposed to investigate the impact of stratospheric aerosol geoengineering on atmosphere, chemistry, dynamics, climate, and the environment.

Link

Breaking Energy: ‘Climate Geoengineering’: As Contingency Plan Perhaps the Sharpest Tool in the World’s Climate Tool Box

„The debate about the development and deployment of geoengineering technologies is slowly creeping into the mainstream media, as both analysts and commentators seem to increasingly doubt the international community’s ability to agree on a comprehensive and effective international agreement at UNFCCC COP 21 in Paris.“

Link