But he says understanding these differences can help discover how some complex processes on our own planet really work.

VOA: special.2009.12.30

on our planet, and effects could be security concerns,

在我们的地球，这些后果可能会危及到安全，

全球变暖和发达国家 - SpeakingMax英语口语达人

And others would saying in addition to the traditional ideas of keeping these Jewish dietary laws involved, we should add an understanding based on the needs of the planet and the suffering of the animals that are potentially involved with our food resources.

另一些人可能会建议，除了,保持传统的,犹太饮食教规，我们应当理解,地球的需求和动物的痛苦,而这些都是与我们的食物来源有关系的。

普林斯顿公开课 - 人性课程节选

Author,educator and environmental activist Bill McKibben offers some advice in his new book on how to live on what he calls our "tough new planet."

VOA: standard.2010.04.21

"The planet on which our civilization evolved no longer exists."

VOA: standard.2010.04.21

Writer-director Cameron also acknowledges that what the humans try to do on the fictional Pandora is a clear metaphor for what he believes are the dangers of exploitation on our own planet;

VOA: standard.2009.12.19

"The bulk of our food production on this planet is dependent to some extent or another on oil or products of oil, so this goes right to the heart of,frankly, the way our society functions,"

VOA: standard.2009.10.20