28.在全世界传播 spread across the world

27.如果我们稍作改变，就会有大的成效

　if all of us make small changes, we could make a big difference

26.空调 air conditioners

25.对环境不利 be bad for the environment

24.来得及采取措施 there is still time to take action

23.存在严重的问题 there exist serious problems

22.国际间的合作　 international cooperation

21.对…负有责任 have a responsibility towards

20.强调世界范围的平等与公正

　stress the need for equality and direness in the world

19.参与我们创造新世界

　take part in the new world we create