如果让那些未经控制能够聚热的气体比如二氧化碳，CO2排放会很有可能引起危险的全球变暖，这将会威胁到我们的健康与环境。
If left unchecked heat trapping emission such as carbon dioxide, CO2, are projected to cause dangerous global warming that threatens our health and environment.
最近的一些报告支持欧盟的观点，即为了防止全球气温上升到危险水平，有必要进一步减少温室气体、比如二氧化碳的排放。
Recent reports support the EU's argument that further cuts in greenhouse gas emissions, like carbon dioxide, are necessary to keep global temperatures from increasing to dangerous levels.
研究小组指出，就连这个数字也可能估计不足，因为它没有解释正反馈的方方面面，比如释放出甲烷和二氧化碳正在融化的永久冻土层。
Even the new figure could be an under-estimate, the team suggests, because it doesn't account for the full range of positive feedbacks, such as melting permafrost releasing methane and carbon dioxide.
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