Petrochemicals play a significant role in the global economy, accounting for 14% of oil demand and 8% of fossil gas consumption. With ongoing conflicts in the Middle East affecting supply chains, the need for alternatives is becoming urgent. According to Assoc Prof Stuart Walsh from Monash University, petrochemicals are present in nearly every product we use daily, particularly in fertilisers, plastics, and textiles, which together make up 70% of total demand. A promising alternative is the use of green hydrogen to produce ammonia for fertilisers, which could reduce reliance on fossil fuels. Amandine Denis-Ryan from the Institute for Energy Economics highlights that 80% of ammonia globally is used for fertilisers, and Australia could leverage its existing ammonia production facilities to incorporate green hydrogen. Additionally, bioplastics made from renewable resources like corn and seaweed are emerging as alternatives to traditional plastics, though they currently represent a small fraction of the market. In textiles, natural fibres such as cotton and wool are more sustainable but typically cost more than synthetic options. Experts emphasize that a comprehensive change in consumer behavior and production systems is essential for a sustainable transition away from fossil fuel dependency.