Policy and Advocacy
There are important issues to debate about how to modify Earth’s reflectivity, from the local to the global, and from the surface out to space.
Increasing Earth’s reflectivity can counteract Earth’s energy imbalance and slow global warming by reducing the amount of incoming solar radiation absorbed by the Earth . Increasing Earth’s reflectivity has been studied with theory and model simulations showing that it can reduce regional and seasonal climate change . There is an increasingly robust literature and vigorous debate about the methods, costs, benefits, risks, governance, ethics of solar radiation management [3, 4].
SEE MORE RESEARCH
1. Climate Intervention: Reflecting Sunlight to Cool Earth. Washington, D.C.: The National Academies Press. (National Research Council, 2015)
2. Geoengineering Earth’s radiation balance to mitigate CO2-induced climate change, Geophys. (Govindasamy, B., and K. Caldeira, 2000)
3. Reflecting on 50 years of geoengineering research, Earth’s Future. (Caldeira, K., and G. Bala, 2017)
4. Evaluating climate geoengineering proposals in the context of the Paris Agreement temperature goals, Nature Comm. ( Lawrence, M. G., S. Schafer, et all, 2018)