Policymakers must confront the dilemma that fossil fuels continue to be an indispensable source of energy even though burning them produces atmospheric accumulations of carbon dioxide that increase the likelihood of potentially disastrous global climate change. Currently， technol**y that would capture carbon dioxide emitted by power plants and sequester it harmlessly underground or undersea instead of releasing it into the atmosphere might double the cost of generating electricity. But because sequestration does not affect the cost of electricity transmission and distribution， delivered prices will rise less， by no more than 50 percent. Research into better technol**ies for capturing carbon dioxide will undoubtedly lead to lowered costs.
1. The passage implies which of the following about the current cost of generating electricity?
It is higher than it would be if better technol**ies for capturing carbon dioxide were available.
It is somewhat less than the cost of electricity transmission and distribution.
It constitutes at most half of the delivered price of electricity.
It is dwelt on by policymakers to the exclusion of other costs associated with electricity delivery.
It is not fully recovered by the prices charged directly to electricity consumers.
环保技术(technol**y that would capture carbon dioxide emitted by power plants and sequester it harmlessly underground or undersea instead of releasing it into the atmosphere)增加一倍发电成本(double the cost of generating electricity)。环保技术不改变传输成本(the cost of electricity transmission and distribution)。最终价格(delivered prices)增加不超过50%。