Lake Champlain also has the same kinds of environmental problems, including pollution and nonnative sea life, as the Great Lakes.

VOA: special.2009.01.05

And of course, there are still pollution problems with motorists.

当然，机动车的污染问题依然很严重。

我使用自行车 - SpeakingMax英语口语达人

Floods,droughts,pollution and climate change have created even more problems.

VOA: special.2010.04.05