This report explains how to urinate in the bush...
"The odd urination behind a tree or in open spaces when travelling is not a problem however please consider that some places in Australia only receive rainfall for a few months each year - smells will linger until thoroughly washed away. Please consider where you urinate for the enjoyment of other visitors and also so you may return to enjoy it yourself next time."
Yep, that's urinating in the bush - for the enjoyment of other visitors. Plus, if you do it right, you can return to enjoy it next time.
The rest of the article seems well put together.
