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.
The North 40 was purchased in part with $10 million dollars of funding from the CPA. The Community Preservation Committee had a discussion of the North 40 deed restriction at its September 11 meeting.
The skies cleared for a beautiful ribbon-cutting ceremony to celebrate the opening of the boardwalk at the North 40 Vernal Pool, which provides both access and protection to this important resource.
Selectman Jack Morgan and NRC Director Brandon Schmitt addressed the large crowd in attendance, and lead volunteer Bill Giezentanner had the honor of cutting the ribbon. The boardwalk was funded by the Community Preservation Act (CPA), and built with over 500 hours of volunteer labor.
See the video about the boardwalk here.
There's even a video:
Over 500 People Explored the North 40!
Frank Lloyd Wright