Forests are both of monetary and non-monetary value for humans. This abundant source of natural materials are of good use to many industries that have been made by humans. Without forests, biodiversity of organisms and the existence of natural resources humans use on a daily basis are directly affected.
CHON is a mnemonic acronym for the four most common elements in living organisms: carbon, hydrogen, oxygen, and nitrogen.
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Definitely i would expect them to concern themselves with your problems when they are so beset with their own. Beset means having a lot of trouble with something, or having to deal with a lot of something causes problems. For example in a sentence; With the amount of traffic nowadays, even a trip across town is beset with dangers.