a. + climate >>共 626
political 12.16%
current 8.49%
economic 6.90%
global 3.83%
new 2.81%
warmer 1.94%
warm 1.94%
present 1.70%
tropical 1.55%
hot 1.20%
current + n. >>共 1075
law 3.14%
system 3.03%
crisis 2.26%
situation 2.02%
level 1.95%
government 1.32%
president 1.07%
issue 1.04%
price 0.97%
problem 0.96%
climate 0.81%
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