"From sun-ray mirrors to microbubbles and iron in the oceans. Is the world ‘past a point of no return’ on curbing emissions?"

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"But new research published in Nature Geoscience, has put forward a lower-risk way of shaving up to 2-3°C off extreme temperatures – making the land more reflective by lightening buildings, roads and infrastructure in urban areas; and changing agricultural practices in rural areas. The research found that changing land surface albedo (the proportion of radiation reflected back into the atmosphere) in North American, Europe and Asia was a “climate engineering” approach that had fewer risks than other solutions, and had already been proven."

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Cao, Long (2018): The Effects of Solar Radiation Management on the Carbon Cycle. In Curr Clim Change Rep 8 (2), p. 605. DOI: 10.1007/s40641-018-0088-z.

"The effect of solar geoengineering on terrestrial primary productivity is typically much smaller than that of CO₂ fertilization. Changes in the partitioning between direct and diffuse radiation in response to stratospheric aerosol injection could substantially alter modeled plant productivity. Inclusion of the nitrogen cycle would further modify the terrestrial response to solar geoengineering."

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"“If the solar radiation management is halted for any reason, then a rapid warming would result, with likely catastrophic consequences,” Dennis Hartmann, a professor of atmospheric sciences at the University of Washington told tech and science website Futurism."

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