If there's anything I retained from my twice-enrolled, once-failed, and once-grudgingly-re-enrolled second year environmental course, it's the concept of The Three Pillars. Prior to undergoing any work, a project should be evaluated against the economic, social, and environmental pillars as criteria for execution.
And while each of these elements are pivotal in decision-making, one tends to forget to nothing can operate in the absence of economics. For without capital, there is no funding for implementing environmentally sustainable measures. For without work, one cannot afford to sleep with a roof over his or her head, regardless of whatever respect society shoves.
I'm not, really.
Woe is me for straying from the great SK!