Question: I'm taking a test and have to guess the right answer to the question after the article. Article: International experts meeting in Australia say global carbon emissions can be reduced by more than 50 percent through simple energy saving measures. People at a conference in Australia, which increasingly relies on coal for power, say that reducing power consumption is an affordable way to both cut energy costs and reduce pollution. While many nations turn to cheap and dirty energy sources, such as coal, to meet their increasing energy needs, analysts in Australia say the best way to meet those needs is to improve energy efficiency. A range of simple solutions include using energy-efficient homes, household appliances and lighting, and driving electric cars. Encouraging homeowners and office workers to switch off their televisions and computers at the end of the day is also seen as an effective way to save electricity. Grayson Heffner, from the Paris-based International Energy Agency, says reducing consumption could greatly cut global carbon emissions. He calls efficiency strategies the "soft giant" of clean energy. "We forecast that energy efficiency will deliver something like three-quarters of the greenhouse gas emissions reductions over the next 20 years. So in the short term energy efficiency is the main way that we reduce greenhouse gas emissions but oftentimes it is not so importantly stressed in the discussions," said Heffner. Energy experts working in China say the government is making significant cuts in power usage. Wan Xingwang, a Beijing-based representative of the Energy Foundation, a U.S. non-government organization, says the results have been impressive. "In the past five years China achieved about 19.1 percent of energy reduction of its GDP. That translates to something like more than 600 million tons of coal savings," said Wan Xingwang. While most nations have some sort of government-sponsored energy efficiency programs, energy analysts say initiatives by individuals and companies can also help cut demand. Steven Nadel, executive director of the American Council for an Energy Efficient... Question: To increase their energy supplies, many nations _ . Options: A: turn to new energy B: turn to cheap energy C: develop solar energy D: introduce clean energy
Answer:
B