61.   Why has the climate for civil disobedience changed, if it has?

62.   While calling for reduction of greenhouse gases, Clinton stopped short of an explicit declaration that pollution was causing the global climate to change for the worse.

63.   Yet the legal climate has changed, in large part, because home schoolers have developed into a potent political and legal force.

64.   Yet the scale of the new buildings and their high-profile reception in the news media suggest that the architectural climate has changed.

65.   But as the climate changed, the few remaining trees survived and reproduced only in this damp, protected gorge.

66.   But by then, the climate was changing again.

67.   But the government believes the political climate has changed since the height of the Cold War.

68.   Eventually, as the political climate changed and the Berlin Wall came down, he was championed in his homeland.

69.   Now the international climate has changed.

70.   Once the Wollemi pines would have covered vast areas of the continent, but as the climate changed the trees apparently retreated into the damp, protected gorge.