Greenhouse gas emissions, such as carbon dioxide, are created in part by burning oil and coal for transportation and electricity.

VOA: special.2009.12.26

And so I think we need to take action as soon as possible to start reducing carbon dioxide emissions.

所以我觉得我们需要尽快开始行动，减少二氧化碳排放。

全球变暖和发达国家 - SpeakingMax英语口语达人

Climatologists say that greenhouse gas emissions, such as carbon dioxide from burning oil and coal, contribute significantly to global warming.

VOA: standard.2009.11.09

Now is the time for us to lead,". One of the bill's main provisions calls for reducing carbon dioxide and other emissions.

VOA: standard.2009.06.27

Scientists say a 25 to 40 percent cut in carbon-dioxide emissions is needed to control global warming.

VOA: standard.2009.12.09

Greenhouse gas emissions such as carbon dioxide are thought to be a major cause behind rising temperatures that have lead to extreme weather and food shortages.

VOA: standard.2009.09.28

Beijing has refused to agree to cap its overall growth in its consumption of fossil fuels or reduce its emissions of carbon dioxide and other greenhouse gases.

VOA: standard.2010.08.03