Plans to reduce airline CO2 emissions using jet fuels made from waste wood have been called a "pipe dream" by environmentalists who have accused the industry, especially in the US, of not adopting meaningful standards, despite a goal set by the International Civil Aviation Authority to cut aviation emissions to half of 2005 levels by 2050. Critics say that around 170 large scale bio-refineries would need to be built every year between 2020 and 2050, costing a prohibitive $60bn a year. The US has also pledged to phase out its use of leaded petrol within five years, but critics argue this will only make matters worse.
Plans to reduce airline CO2 emissions using jet fuels made from waste wood have been called a "pipe dream" by environmentalists who have accused the industry, especially in the US, of not adopting meaningful standards, despite a goal set by the International Civil Aviation Authority to cut aviation emissions to half of 2005 levels by 2050. Critics say that around 170 large scale bio-refineries would need to be built every year between 2020 and 2050, costing a prohibitive $60bn a year. At $3 per gallon, the green fuel would be more than double the current market price of petroleum-based jet fuel.