The tragedy of the commons is an economic theory of a situation within a shared-resource system where individual users acting independently and rationally according to their own self-interest behave contrary to the common good of all users by depleting that resource.
Source: Tragedy of the commons – Wikipedia, the free encyclopedia
Not always – but most of us will smile at the sight anyway. A favorite of young and old alike for its vivid color and cheery song, the American robin is the state bird of Connecticut, Michigan, and Wisconsin.
Cornell Lab of Ornithology
We think of American Robins as harbingers of spring, so when we see them during the winter, what does that mean? Is spring coming early? Are there a few confused birds in your neighborhood? Find out in our Question of the Week:
runnel – (noun) – A small stream; a brook.
Synonyms: streamlet, rill, rivulet, run.
Usage: He could tell from the impression carved into the landscape that the runnel’s flow had drifted a few feet to the north.