the other day i purchased a few books at the bookstore. one of them went into depth on the history and evolution of trees. it stated that 1 acre/.4ha of tree is capable of keeping 18 people alive by filtering pollution, absorbing co2 and releasing oxygen. does anyone have any idea how much o2 a certain tree of specific size might release in a specific amount of time.
i guess i need .055 acres of trees in my bomb shelter to gear up for the end of the world
