It causes environmental problems, like air pollution and temperature rise.

它可导致环境问题，如空气污染和温度上升。

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External environmental causes of cancer are factors in the environment that increase risk of cancer such as air pollution, UV radiation and indoor radon.

外部环境致癌因素是指环境中导致罹患癌症的危险升高的因素，如空气污染、紫外线辐射及室内的氡等。

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The World Health Organization (WHO) describes air pollution as "a major environmental risk to health" and estimates that it causes around 2 million premature deaths worldwide every year.

国际卫生组织认为空气污染“对于健康是最主要的环境危险”，估计每年在全世界造成200万人死亡。

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After all,using cars to move goods causes a lot of carbon air pollution and traffic jams."

VOA: standard.2010.01.04

Air pollution causes heart attacks and death.

FORBES: Researchers Prove Air Pollution Causes Heart Attacks

That is because the tradition of setting off firecrackers during this time of the year causes a large amount of noise, air and ground pollution.

BBC: Taipei residents urged to use CDs not firecrackers