It’s energy- and environmentally- friendly at a time when concerns about global warming are growing. And it’s distributed, at a time when the world is skeptical of leaders’ promises and people are realizing they have to do things for themselves.
如果在几年前，此项计划听起来还有点不可思议。但现在正是合适的时机。世界经济正处在萧条时期。由于全球气候变暖，环境保护问题越来越受到人们的重视。随着各国领导人的承诺，人们日益感觉到应该为环保工作做一点什么事情的时候了。