The world's reliance on fossil fuels has been starkly revealed by the recent standoff in the Strait of Hormuz, leaving us with an urgent question: Can we loosen the grip that fossil fuels have on our lives? From the fuel in our cars to the petrochemicals in our everyday items, it's clear that we need to explore alternatives. But the challenge lies in the fact that oil and gas are the raw materials for 90% of all raw materials, according to the International Energy Agency. This includes everything from toothbrushes to carpets, and even the food we eat. So, how can we make the transition to a more sustainable future? Let's take a closer look at some of the key areas where we need to find alternatives.
Food and Fertilizers
One of the most critical areas where we need to find alternatives is food production. About half of the world's food production relies on synthetic nitrogen fertilizer, which is made using ammonia derived from gas via the Haber-Bosch process. This process is a true miracle, allowing us to feed the world's population and convert methane into other chemicals. However, the reliance on gas for this process is a concern. The good news is that we have the technology to make green ammonia using renewable energy, and Australia is already making strides in this area. The challenge is to scale up production and reduce costs, but the benefits are clear: reducing our reliance on gas and cutting emissions.
In addition to green ammonia, we can also optimize fertilizer use, crop rotation, and substitute organics to reduce our reliance on imported products. While we may not be able to completely replace Australian fertilizer requirements with organics, recent research shows that mixing small amounts could benefit soil quality and crop performance, while easing reliance on supplies passing through the Strait of Hormuz. So, while we may not be able to grow food without fossil fuels just yet, we can take steps to reduce our dependence on imported products and make the transition to a more sustainable future.
Plastics
Another area where we need to find alternatives is plastics. More than 90% of the plastic that comes into Australia is imported, and most are derived from fossil fuels. While recycling is important, it's not enough to solve the problem. Bioplastics, made from renewable materials like corn, sugarcane, seaweed, and food waste, could provide an alternative. Polyhydroxyalkanoates (PHAs) are a promising option, as they are both home compostable and marine biodegradable. Australia has the science and engineering expertise to scale up bioplastics manufacturing, and early-stage companies are already making strides in this area.
However, the problem with plastics goes beyond the materials themselves. We need to produce and use less plastic, and the solution lies in reducing overproduction. Cip Hamilton, the plastics campaign manager at the Australian Marine Conservation Society, argues that we cannot recycle our way out of a crisis driven by overproduction. So, while bioplastics are a step in the right direction, we need to take a holistic approach to reducing our reliance on plastics.
Textiles
The final area where we need to find alternatives is textiles. Synthetic fibers overtook cotton in the mid-1990s and now make up about 73% of global textile production. While they are cheaper to produce and don't depend on environmental conditions like soil and water, they are also derived from fossil fuels. The uncertainty caused by the war in Iran has led to rising prices, and some polyester producers are paying 30% more for fossil fuel feedstocks. While natural alternatives like cotton, wool, linen, silk, and hemp are available, they are usually more expensive and produced in smaller quantities.
However, Australia has an advantage as a huge grower of cotton and the world's largest producer of merino wool. Some synthetics like elastane are particularly hard to substitute, but natural rubber is an option, albeit limited in quantity. Swapping some petrochemical fibers for organic ones would be possible, but the barriers to doing so at scale are largely systemic. The quantity of goods produced and sold, the volumes people are purchasing, and the price they are willing to pay all play a role. Nevertheless, there are small brands doing innovative things, like the New Zealand label Kowtow, which has eliminated plastics and petrochemicals from its garments.
In conclusion, while we may not be able to completely wean ourselves off fossil fuels just yet, we can take steps to reduce our reliance on imported products and make the transition to a more sustainable future. From food and fertilizers to plastics and textiles, we have the technology and expertise to make the transition, but we need to take a holistic approach and prioritize durability, quality, and craftsmanship over cheap and fast fashion. It's time to think differently about how we produce and consume goods, and to embrace a more sustainable future.
