(2)
Air pollutant— The term air pollutant has the meaning given such term in section 302(g) of the Clean Air Act (
42 U.S.C. 7602(g)).
(3)
Apparatus— The term apparatus means a device, instrument, or system.
(4)
Atmosphere— The term atmosphere means the gaseous envelope surrounding the Earth, including all airspace within the territorial jurisdiction of the United States.
(6)
Chemical substance— The term chemical substance has the meaning given such term in section 3 of the Toxic Substances Control Act (
15 U.S.C. 2602).
(7)
Cloud seeding— The term cloud seeding means the act of altering the processes of a cloud or storm by releasing a substance into the air.
(8)
Geoengineering— The term geoengineering means a technological intervention aimed at mitigating the effects of lowering the temperature of, or removing certain gases from, the atmosphere.
(9)
Marine cloud brightening— The term marine cloud brightening means a strategy for adding aerosol to the lower atmosphere over ocean regions to increase the reflectivity of clouds.
(10)
Stratospheric aerosol injection— The term stratospheric aerosol injection means a strategy for increasing the number of small reflective aerosols in the stratosphere to increase the reflection of incoming sunlight.
(11)
Weather modification—
(A)
In general— The term weather modification means any injection, release, emission, or dispersal of a chemical substance, a biological agent, or an air pollutant, or conveyance of an apparatus, into the atmosphere that—
(i)
produces a change in the composition or behavior of the atmosphere; or
(ii)
affects the temperature, weather, climate, or intensity of sunlight.
(B)
Examples— Such term includes—
(iii)
solar radiation modification and management;
(iv)
stratospheric aerosol injection; and
(v)
marine cloud brightening.