Thursday, July 30, 2009

Unit 1: Positive externalities in Greenland arising from global warming

The BBC reports on possible positive externalities in Greenland arising from global warming

http://news.bbc.co.uk/1/hi/sci/tech/8173781.stm

a) Define a positive externality
b) Describe the potential positive externalities for Greenland arising from global warming and explain why are they positive externalities.

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