People began to be aware of the importance of environmental protection after the weo sand storms.

在经历了两次沙尘暴后，人们开始注意到环保的重要性。

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To achieve this, the WEO estimates that renewable and carbon-efficient fossil-fuel energies will have to expand their share of the energy mix from 19 to 26 percent by 2030.

要达到这个目标，该报告估计，再生能源和节能型碳化石燃料将它们在能源结构中的比重必须由19%提高到2030年的26%。

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To achieve this, the WEO estimates that renewable and carbon-efficient fossil-fuel energies will have to expand their share of the energy mix from 19 to 26 percent by 2030.

要达到这个目标，该报告估计，再生能源和节能型碳化石燃料将它们在能源结构中的比重必须由19%提高到2030年的26%。

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