Changes

'''Illustrative examples:'''

:''A good start:'' Even though you just want to write about that one tree, start/edit the article "Tree climbing," and place what you write in a section of it. If you want to do a really good job, go the extra mile to start a preface on the general title to help other editors get an idea of where they can work from.

:''In the future:'' Even without a preface, it's a very good bet that others will expand on this subject, with more trees and perhaps a guide to history and technique of the pasttime.