I wonder if there are many PO aware teachers out there?

Sally,
I've been looking into the same question. While I am not a teacher, I have several family members who are.

You pretty much hit on the major issues when talking about curriculum and buying from a "reliable" source of texts. In most places, the state (the government) dictates to teachers what they will and will not teach. For example, in most states of the United States, public school teachers are barred from teaching about Creationalism (Intelligent Design, or whatever else it is called) and prohibited from teaching religion.

Second, textbooks are a multi-billion dollar a year big business. Book companies are in the business of constantly revising their texts to make them politically correct (PC) for the current political party in power. When you look at some of the elementary textbooks that the State of California (where I live) forces down the throats of students and teachers, you can't help but wonder who bribed whom and with how much. The books are atrocious and boring beyond any mild case of ADHD. Even I as a literate adult can't understand half of them.

The likelihood that any in-power political party or big-business book company will broach on the topic of Peak Oil is close to nil. Look at what happened to poor congressman Roscoe Bartlett of the United States even while his Republican party was in full power. They wouldn't give him the time of day. It's an uphill battle. But who is there to fight the good fight if not us peons?