单选题New Ideas Iceland's President Olafur Grimsson is trying to drive carbon dioxide (二氧化碳) underground to (51) its release into the air. Over the next two years, a team of scientists will try to (52) carbon dioxide—charged water into the rock underground. Scientists say this should work. The CO2 will react with the rock to form a stable mineral that remains in the (53) for millions of years. If the experiment succeeds, Iceland could give the world a new (54) to reduce emissions. Sigurdur Gislason, a university professor in Iceland, says his country has an (55) over other countries. "We have enormous amounts of clean (56) and a small society. You can do experiments here that you can't do anywhere else." In an attempt to cut back on the use of air conditioners during summer, the Japanese government in2005 (57) a campaign to keep office temperatures at 28℃ in summer. Men were also encouraged to change business suits for (58) wear. In other words, no more ties. "The (59) is meant to show the government's resolve to achieve Japan's target of reducing greenhouse (温室) gas emissions by 6 percent," said Chief Cabinet Secretary Hiroyuki Hosoda. The (60) has cut an estimated 79,000 tons of carbon dioxide gas emissions each year. As the country's 2005 Energy Policy Act (61) into force this year, more Americans will be encouraged to use (62) cars and energy sources. According to the new law, those who buy hybrid (混合) cars such as the Toyota Prius can earn tax credits, or rebates (退款),of (63) to ＄2,600 a year. Homemakers (主妇) can also save when they renovate, claiming tax rebates (64) around ＄500 simply by fitting their homes with energy—saving insulation (绝缘). If they (65) in solar water heating, the payoff at tax time is equal to 30 percent of the appliance's cost or a maximum of ＄2,000.