11.   But as NATO troops moved into Bosnia the climate gradually changed.

12.   But his aides acknowledged the political climate for Weld changed in the November election.

13.   But his comments Tuesday were an indication of how the political climate has changed, as he made only passing references to a federal role in education.

14.   But in the wake of disclosures about the bodies, the climate has changed palpably.

15.   But now the research climate may be changing.

16.   But the climate changed, and it appeared likely as the session started that something was going to pass.

17.   But the climate has changed considerably since then.

18.   But the economic climate may be changing.

19.   But then the political climate changed, the rage quieted.