a; How is the weather like today?
b; It's sunny and a little hot.
c; Yes,I agree.Do you think it's caused by the climate changing?
d:You mean the Globle Warming?
c:Yes.It the main reason of unstable climates,isn't it.
b; Yes,it is.And according to the report of...
a; Quit it!It's sunny outside and that's all I want to know!