Read about Wellesley College's historic Whitin Observatory, below.
Light can interfere with nocturnal hunting, birdsong, vegetation.*
Just a few examples:
Public shade trees and the special stress they face from street lamps:
Light and Leaf Abscission and Plant Dormancy - Calgary Center
The length of nighttime darkness is a critical trigger for many deciduous plants to start the process of losing leaves in the fall (abscission) and entering a period of dormancy. Phytochromes mediate abscisic acid, which is responsible for these two actions. Artificial nighttime light can "fool" a tree into retaining the chlorophyll in its leaves too late in the season when deep frosts kill the leaves. Instead, the tree should be turning the various compounds of leaves into sugars and bringing these nutrients down into the roots for storage prior to the leaves being killed off. Trees and shrubs continue growing into autumn because of artificial daylight and fail to harden properly before winter. To properly cope with winter extremes, trees need to create special leaf-like structures to safeguard next year's growth locales. We know these as buds. The protective covers on the leaf buds are actually highly modified leaves coaxed into growing that way by high concentrations of abscisic acid produced by the tree and controlled by phytochromes.
For more information on Lighting and its effect on the environment and us, please see our Wellesley Friends of Conservation Partner FRIENDS OF BROOKSIDE LIGHTING INFORMATION page.
Article 6 Permitted Exceptions: Future Development Conditions
6..02 (c.) Dark Sky standard lighting fixtures: low-impact lighting fixtures, light shielding, hours of operation and other operational management practices. Buyer and Seller will use good faith efforts to negotiate mutually acceptable restrictions and guidelines prior to the last day of the Inspection Period and the parties will agree to abide by the same from and AFTER closing.
Wellesley Townsman: Residents who regularly visit the North 40 – and specifically, the part that was once a dump site – have noticed town employees in the area and heard rumors that trees are going to be removed. Read more...
There's even a video:
Over 500 People Explored the North 40!
Frank Lloyd Wright