(a)[2]
Define economic sustainability and give one example, taken from the information, of a change that could be used to illustrate it.
(b)[4]
Use the information to comment on the likely effects on the economies of the countries that chose not to sign the carbon policy agreement.
(c)[4]
Discuss why the article describes China as ‘a country of contradictions’.
(d)[10]
With the aid of a marginal social cost and benefit diagram, discuss whether continued use of coal to produce electricity makes it less likely that allocative efficiency will be achieved.