广播电视英语短句 第 208 课：室内空气污染-1

More than three billion people are at risk from indoor air pollution because of the heating or cooking fuels they use. 超过 30 亿人由于使用加热或烹饪燃料产生的室内空气污染因而处在危险中。

Most live in Africa, India and China . They use biomass fuels like wood, crop waste, animal waste or coal. 大部分人生活在非洲、印度和中国。他们使用生物质燃料如木材、作物废料、动物粪便和煤。

These solid fuels may be the least costly fuels available. 这些固体燃料价格低廉容易获取。

But they are also a major cause of health problems and death. 但是他们是产生健康问题和死亡的主要原因。

For more than thirty years, the Aprovecho Research Center has been designing cleaner, low-cost cooking stoves for the developing world. 三十多年前， Aprovecho 研究中心就已经在为发展中国家设计更清洁、低成本的炉灶。