"Underwater sea walls and artificial islands among projects urgently required to avoid devastation of global flooding, say scientists"

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"New research is underway examining the potential costs and benefits of climate geoengineering to combat global warming. Geoengineering is certainly a controversial issue, as it requires the purposeful manipulation of climate to mitigate the effects of climate change, which some argue could have devastating side effects. But according to one Popular Science piece, it’s a way to “press pause” on the worsening impacts of global warming."

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"Should scientists attempt to slow climate change by intentionally increasing the size of the Greenland Ice Sheet to reflect sunlight away from the planet?"

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Ji, Duoying; Fang, Songsong; Curry, Charles L.; Kashimura, Hiroki; Watanabe, Shingo; Cole, Jason N. S. et al. (2018): Extreme temperature and precipitation response to solar dimming and stratospheric aerosol geoengineering. In Atmos. Chem. Phys. Discuss., pp. 1–36. DOI: 10.5194/acp-2018-131.

"We examine extreme temperature and precipitation under two potential geoengineering methods forming part of the Geoengineering Model Intercomparison Project (GeoMIP). The solar dimming experiment G1 is designed to completely offset the global mean radiative forcing due to a CO₂-quadrupling experiment (abrupt 4 × CO₂), while in GeoMIP experiment G4, the radiative forcing due to the representative concentration pathway 4.5 (RCP4.5) scenario is partly offset by a simulated layer of aerosols in the stratosphere. Both G1 and G4 geoengineering simulations lead to lower maximum temperatures at higher latitudes, and on land primarily through feedback effects involving high latitude processes such as snow cover, sea ice and soil moisture."

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