Goldemberg José
University of São Paulo, São Paulo, Brazil.
Science. 2007 Feb 9;315(5813):808-10. doi: 10.1126/science.1137013.
Renewable energy is one of the most efficient ways to achieve sustainable development. Increasing its share in the world matrix will help prolong the existence of fossil fuel reserves, address the threats posed by climate change, and enable better security of the energy supply on a global scale. Most of the "new renewable energy sources" are still undergoing large-scale commercial development, but some technologies are already well established. These include Brazilian sugarcane ethanol, which, after 30 years of production, is a global energy commodity that is fully competitive with motor gasoline and appropriate for replication in many countries.
可再生能源是实现可持续发展的最有效途径之一。提高其在世界能源格局中的占比将有助于延长化石燃料储备的存续时间,应对气候变化带来的威胁,并在全球范围内实现更好的能源供应安全。大多数“新型可再生能源”仍在进行大规模商业开发,但有些技术已经相当成熟。其中包括巴西甘蔗乙醇,经过30年的生产,它已成为一种全球能源商品,与车用汽油具有充分的竞争力,并且适合在许多国家推广。