FTA: All these are formulated according to figures from U.S. Forest Service that estimate the total ecological benefits a tree gives in dollars. In the case of the tree in the image below, this one has a benefit for its population that amounts to slightly more than $500 USD each year.
You can't expect to get in-depth, exhaustive explanations of complex concepts in a short article, but you should looks the primary sources cited therein and critique those if you feel they fall short.
You can't expect to get in-depth, exhaustive explanations of complex concepts in a short article, but you should looks the primary sources cited therein and critique those if you feel they fall short.