Sebastian Vettel feels Formula 1 is not doing enough to address environmental issues and fears the sport is at risk "of being overtaken or even disappearing in the next ten years".
While the German driver is pleased to see the sport evolve over the past few years with various initiatives to reduce costs and become more environmentally friendly, Vettel says the changes are taking far too long.
Vettel also hit out the scheduling of the 2022 campaign, saying it feels to him that decisions were made based on financial interests instead of what makes the most logistical sense.
Quoted by Global Motorsport Media, Vettel says: "Financial interests should not be the top priority in planning the calendar. We shouldn't fly east to west or north to south, but wherever is closest. Banning plastic in the stands and the paddock can also make a big difference.
"Of course, neither would save the world, but if F1 does not adapt to global developments, challenges and problems, it runs the risk of being overtaken or even disappearing in the next ten years, even if the audience is growing. Time passes, but paradoxically in F1 it seems to have stopped.
"Our sport is fast and progressive in many ways, like in technology and related innovations, but when it comes to ideas, we are not exactly pioneers."