What role will Australian LNG play in 2050? Demand for Australian LNG beyond 2050 could vary widely. The modelling indicates demand in 2050 could vary as much as 80 billion cubic meters, or about 58 million tonnes between scenarios. In all scenarios examined, LNG exports decline to 2050. However, LNG still has a clear role to play in 2050. There are crucial differences in demand for Australian LNG in 2050. In all scenarios, Australia maintains a large share of LNG trade with existing trade partners.