A dad has pulled his soon out of school claiming teachers are trying to "brainwash" the 10-year-old about climate change.
Matthew Karlos was so annoyed by plans for "greenie day" on the last day of term that he stopped Max going to school.
The dad accused staff of trying to brainwash his son.
Young Max told TV show A Current Affair in Australia: "They asked us all to dress up as hippies and sing this song, Big Yellow Taxi [by Joni Mitchell].
"We shouldn't be worrying about the end of the world."
Max said the rest of his class had been happy to dress up as hippies.
He said: "And I thought, what's so good about it? There's nothing good about it.
"They just sit around doing nothing all day."
Dad Matthew had already kept Max out of school earlier in the year, when pupils were asked to deliver speeches on climate change.
He said: "It's just brainwashing the younger generations.
"[The speech] was to do with mankind induced climate change and all this business they carry on about now."
Matthew, who is a second generation water farmer, has often disagreed with environmentalists, who are against his water harvesting business in northern New South Wales.
"They don't like the trucks on the road, they don't like this, they don't like that you know, so here we are," he said.
"You've gotta (sic) teach kids to be happy and positive and it's all well and good to be concerned about the environment and wanting to teach kids good practices and basically not be grubs and throw litter around and this sort of thing, but you don't have to be a greenie to do that."
Max will start at a new school next term.
