opportunity cost, definition of

The cost of an economic activity foregone by the choice of another activity.

• Global Warming, climategate, big business and being green
  The theory of man made global warming is turning into an excuse to derive profit from peoples good nature, what is going on?..
• Climategate, what is going on?
  Global warming, climate change, greenhouse effect and climategate; how 'valid' is the climate science?

• The Carbon War
  The Carbon War - how the ABC misrepresent the political and social situation in Australia around the Carbon Tax.
• Carbon Tax Pros and Cons
  We look at the Pros and Cons of the Carbon Tax...