Environmental issues have been major public concerns for over a decade, says Anthony Saich of Harvard University, which has conducted polls.

哈佛大学的安东尼·塞挈进行了一项投票调查，称环境问题在过去十年中变成了公众关心的一大问题。

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Tony Saich, of the Kennedy School at Harvard, points out that such episodes, when the debate intrudes into the official press, have occurred a few times before at similar moments in the party's political calendar over the past two decades.

ECONOMIST: Banyan