Urban Law Annual
Sunlight travels through space unobstructed for 93,000,000 miles. Only during the last few hundred feet before it touches earth is it impeded by obstructions other than clouds, which cause shading. Since access to sunlight is critical to every solar energy system, the legal problems that may result from the obstruction of sunlight are great.
Melvin M. Eisenstadt, Stephen C. M. Long, and Albert E. Utton,
A Proposed Solar Zoning Ordinance,
15 Urb. L. Ann. 211
Available at: https://openscholarship.wustl.edu/law_urbanlaw/vol15/iss1/8