【答案解析】When we are listening to those "pro-environment" politicians and advocates who make speeches, convene conferences and formulate plans, we should bear in our mind that even though they pose as warriors against global warming, their real purpose is to brandish their environmental credentials, some of their measures will harm the economy without producing significant environmental benefits. Policies motivated by political gain will inflict public pain. We should keep some distance from them, and not rush into their "cheer groups".