All-Points Bulletin often appears in true-crime documentaries, so people are quite familiar with it.

A．the world must agree on what has caused the changing climate
B．the world must agree on what may result from the changing climate
C．all the countries should agree on how to reduce the greenhouse gases
D．all the countries should take part in looking for the solutions

A．thought it unnecessary to deal with the global warming
B．found it impossible to reach the goal set by the protocol
C．doubted whether it was treated equal as the biggest polluter
D．believed that control of oil use would be more effective