Statistics
		Stratospheric aerosol injection	Marine cloud brightening	Cirrus cloud thinning	Space-based extraterrestrial reflectors	Albedo modification via human settlements	Albedo modification via grasslands and crops	Albedo modification via deserts	Albedo modification via clouds	Ice protection	High-altitude sunshades
N	Valid	34	26	23	24	22	20	20	16	20	19
	Missing	40	48	51	50	52	54	54	58	54	55
Mean		3.76	3.38	3.61	3.50	1.95	2.80	2.80	3.00	2.90	3.26
Median		4.00	3.50	4.00	4.00	1.50	3.00	3.00	3.00	3.00	3.00
Std. deviation		1.478	1.359	1.438	1.642	1.253	1.322	1.240	1.414	1.334	1.284