SRM means more than global geoengineering.The Mie theory behind stratrospheric aerosol brightening can also make water more reflective. Since most agricutural water reservois are small, short-lived dispersions of reflective microbubbles (hydrosols) could help solve a global paradox of conservation economics -that water is too cheap to conserve.


Russell M Seitz, Harvard University, Cambridge, MA, United States; The Climate Institute, Washington, MA, United States
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