环境保护和污染治理已经成为现在大家最关注的话题之一。发展清洁科技，提高能源使用效率成为提升环境质量的不二选择。

Cleantech refers to the technology that is itself environmentally friendly or that helps reduce environmental problems; or the business sector that produces such technology.

清洁科技指的是本身就很环保，或者能帮助减少环境问题的科技，也可以指生产此种技术产品的商业部门。

Venture capital investment in clean technology businesses rose sharply in 2007, reflecting political and consumer support for a greener economy.

2007年，对清洁科技产业的风险投资出现大幅上升，反映出政治人士和消费者对环保经济的支持。

Clean applications — which include renewable power, energy efficiency and recycling — are seen as particularly promising areas.

清洁科技应用被视为非常有发展前景的领域，包括可再生电力、提高能源效率及回收利用。