And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.

当你想到，在地球上每年要消耗多少的水泥混凝土的时候，这将是温室气体排放的，一个主要来源。

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Regulatory agencies in both the us and Europe are tightening controls on fugitive emissions, such as equipment leaks, as opposed to point-source emissions from reactor vents or boiler exhaust stacks.

美国和欧洲监管机构正在加紧对过度排放的控制，例如设施泄漏，监控反应堆通风口及锅炉点源排放的废气。

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And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.

当你想到,在地球上每年要消耗多少的水泥混凝土的时候,这将是温室气体排放的,一个主要来源。

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