translation.en: It's an easy, visible target of concern -- and it should be -- but there is more global warming pollution that comes from buildings than from cars and trucks.
translation.zh: 这应该是我们所忧虑的目标里比较容易和显而易见的一个了， 但是相对于汽车和货车，对于全球温室效应的污染则更多 来自于建筑物。