Why is energy considered scarce?

In economics, a commodity is called scarce if using that commodity in one specific way implies that it can no longer be used in any other way. Using such a commodity means that opportunity costs are made. ... Producing these renewable-energy assets requires the use of economic resources, such as capital and labour.

Explanation:

Many of the world's problems today can be traced to energy use, from conflicts over oil supplies and concerns about greenhouse-gas emissions to lost productivity and output stemming from shortages and blackouts. In many of the poorest parts of the world, the lack of energy stifles economic development.

Explanation:

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the answer would be in this answer. someone already asked the question.  

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.