A rogue Liberal MP has doubled down on his threat to quit his frontbench position if the federal party continues to support Australia's climate targets, but admits his views on the issue are "in the minority."

Opposition infighting has reignited in recent days after Western Australian MP Andrew Hastie, seen by some as a future leader, said he'd move to the backbench if the coalition stuck to its policy of net zero emissions by 2050.

Mr Hastie denied quitting the shadow ministry would trigger a challenge for the party's leadership.

"Most of my colleagues, in fact, don't support my position. So I'm in the minority here," he told Sky News on Wednesday.

"I'll serve where I'm serving as home affairs shadow right now, and I'll continue to serve until such a time as I can't.

"But energy poli

See Full Page