FOIA Reveals U.S. Air Force Paper “Counterforce Weather Control: SpaceCast 2020”

This paper proposes a counferforce weather control system (with both space
and ground based segments) and identifies the prerequisites necessary for such a system to
be feasible. Atmospheric scientists have pursued terrestrial weather modification in
earnest since the 1940s, but have made little progress because of scientific complexities,
legal battles, social concerns, and the intricacies of control at the local, national, and
international governmental levels. Developing a space-based weather control system for
military applications enormously compounds this already difficult problem The costs and
risks are extremely high However, the potential benefits to military powers are even
higher; subsequently, military powers will periodically be inspired to investigate the
feasibility of a weather control system.

(U) This conceptual counterforce weather control system is developed through a
three stage predictive analysis technique:
- conceptualize a desired end state (ability to control weather, at will, as a
principle of war),
- hypothesize the preconditions to achieve that end state, and
- develop measures of effectiveness which indicate progress tOward that
end state.

(U) The desired end state is limited only by imagination For example, envision
the capability to accomplish the following objectives
- "bore a hole" through a cloud to allow unrestricted surveillance of an
enemy target (figure l ),
- create an atmospheric event over an enemy airfield so as to ground all
their aircraft (i e., thick fog or severe thunderstorm), and
- create a weather pattern that obscures your military movement from the
Carbon Black DustEnvironmental WarfareNon-Lethal WarfareIonospheric Heater



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