Timber, however, is a renewable resource that can be made carbon-neutral if trees are planted to replace those cut-down.

然而，木材是一种可再生资源，如果种植树木来取代被砍伐的树木，就可以实现碳中和。

If trees can remember stress - types of insects that eat it, for example – they might be better prepared in future.

如果树木能让自己记住有压力的事物——例如，啃食自己的昆虫类型——它们将来可能会做好更好的准备。

Like, you might think, " If trees remove so much carbon from the atmosphere, isn't the obvious solution to plant trees, well, everywhere? "

比如，你可能会想，“如果树木从大气中吸收了这么多的碳，那么到处种树不是最明显的解决方案吗？”

But if trees are not available, he can do without them; he can cut logs, roll them into place, and make a dam wholly out of logs.

但如果没有树，他也可以照样建造；他可以砍伐原木，把它们滚到合适的地方，然后完全用原木筑坝。