If Romney likes coal, then he must love air pollution and global warming.

如果罗姆尼想要煤炭，那么他必然不介意空气污染和气候变暖。

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Pollution and global warming caused by vehicle emissions and exhaust are now also serious issues that many people are concerned with.

由汽车尾气排放造成的污染和全球变暖现在也是许多人关心的严重问题。

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What’s more, global warming, dams and pollution have taken a heavy toll on eel populations in North America and Europe.

还有，全球变暖问题，大坝问题，以及环境污染问题，都使得北美及欧洲地区的野生鳗鱼存活量近年来锐减。

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But other contributing factors to their include coastal development, egg poaching, ocean pollution and global warming.

CNN: Turtles in race to beat extinction

They also hope an initiative to address pollution and global warming will stop enviromentally-conscious voters from backing Green Party nominee Ralph Nader.

CNN: Gore to unveil plan to lower gas prices

"In fact, when you burn coal, you emit more acid rain pollution, more air pollution, more smog and more global warming pollution which threatens the entire planet, " said Becker, global warming program director for the Sierra Club.

CNN: Energy debate may soon turn on 'cleaner' coal