Currently, the economic cost of environmental damage is estimated at 9% of GDP; nearly 90 percent of this cost is due to air pollution.

目前，环境破坏造成的经济损失约占GDP的9%，其中近90%是由于空气污染造成的。

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To take measures against the traffic exhaust in advance based on the air pollution trend can reduce the difficulty and the cost of controlling the air pollution in Chongqing in the future.

根据其大气污染趋势，提前对交通尾气污染采取措施，可降低重庆市未来大气污染治理的难度与成本。

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Use of water as practically the only carrier virtually eliminates fire hazard, materially reduces water and air pollution, and markedly reduces the cost of facilities for controlling these conditions.

使用水做载体，免除了火灾危险。大大降低了水和空气的污染，明显地减少了环保设备费用。

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The cost differential is driven by air pollution, interconnection and the economics of fuel efficiency.

FORBES: Backup Generators Are the Bad and Ugly of Decentralized Energy

However, the detractors of solar do not factor in all of the subsidies given to non-renewable energy (hundreds of billions of dollars a year in the USA), and they do not factor in the cost of our military to secure foreign oil supplies or our ongoing medical costs due to air pollution.

WHITEHOUSE: The Joy of Sustainability