Topic: Selective Catalytic Reduction

A global shortage of urea has led to a crisis in the supply of AdBlue, a diesel exhaust fluid required for modern Selective Catalytic Reduction (SCR) systems to meet emission standards. China, the world's largest urea producer, halted exports to prioritize domestic fertilizer production, threatening to halt the Australian trucking and mining industries. The hosts address rumors that AdBlue contains pig urine, clarifying that while it uses urea, the claim of using raw animal waste is factually incorrect.