They are the cornerstone of the climatic balance... 是我们赖以生存的

144. They are the mother and father of rain.
     它们也是雨水之源
145. The forests store carbon.
     森林储蓄碳
146. They contain more than all the earth's atmosphere.
     它们的含碳量多于地球大气
147. They are the cornerstone of the climatic balance...
     是我们赖以生存的
148. On which we all depend.
     气候平衡的基石
149. Trees provide a habitat for three-quarters of the planet's biodiversity
     树木提供地球四分之三生物种族的栖息地
150. That is to say, of all life on earth.
     也就是地球上的一切生命

来自《家园 第二部分 Home Part2》第 147 行