商品描述
Footprint Reading Library - Level 3000 Headwords
Alternative Energy
Theme: Amazing Science
Language(s): American English
Level(s): High-intermediate, C1
Authors : National Geographic; Rob Waring
Overview
Global warming and a lack of available traditional fuels have created an environmental crisis. In Colorado however, scientists in the windy Rocky Mountains have found alternative fuel sources that could provide a solution. What are these new sources of energy? How can they be used in everyday life?