ATWA was the name for Charles Manson's philosophy. It stands for Air, Trees, Water and Animals. It is a very basic earth-oriented philosophy basically about respecting the planet we live on. Nothing too far from most Indian philosophies.

Various Manson quotes on the subject:
"I don’t think in goods or bads, just is’s, What it is. Not what I was, want or hope. Whatever life is, it is, and bad and good got nothing to do with it. A snake eats the baby squirrel. Mamma squirrel may say that’s bad, but snakes got to eat. The life cycles are and only humans got the order fucked up."

"Your water’s dying. Your life’s in that cup. Your trees are dying. Your wildlife’s locked up in zoos. You’re in the zoo, Man. How do you feel about it?"