According to Arne Naess and George Sessions view of deep ecology, the term “life” is extended to include non-humans, and that human should be included into the ecosphere as a whole. And actions are also encouraged to extend care to humans and deepen care for non-humans.
从生态批评角度简析《老人与海》(3):http://www.youerw.com/yingyu/lunwen_67175.html