51.   The climate has changed drastically.

52.   The climate has changed, too.

53.   The economic climate changed.

54.   The handicapping approach is intended to help sort out many uncertainties, including how the climate changes naturally and how much humans will contribute to the warming phenomenon.

55.   The investment climate could change rapidly.

56.   The regional climate is changing, moving from many years of predictable rainfall to a far more variable climate.

57.   The political climate was changing, anger was dissipating, and some members were turning to more traditional theater.

58.   There is no better demonstration of how dramatically the political climate has changed this election year than in the commercials candidates are broadcasting around the country.

59.   They are the principal tools available to researchers who are trying to understand how the global climate is changing.

60.   To be sure, the political climate could change.