Scientists urge slower flights to cut carbon emissions

Researchers from the University of Cambridge have proposed a significant change in aviation practices to combat climate change. Their report suggests that reducing the speed of airplanes by 15% could lead to a decrease in fuel consumption by 5 to 7%. This adjustment would result in longer flight times, particularly for transatlantic journeys, which could be extended by approximately 50 minutes. The report outlines three major efficiency measures aimed at reducing fuel burn in the aviation sector. One of the bold measures includes accelerating the replacement of aircraft, aiming to cut the average retirement age from 30 to 15 years by 2050. This change could potentially reduce fuel burn by 11 to 14%. Additionally, the researchers emphasize the importance of ensuring that aircraft operate closer to their design range, which could further lower fuel consumption by 4 to 7%. These strategies are designed to address the urgent need for systemic changes within the aviation industry. The researchers acknowledge that implementing these measures may not be popular among passengers, particularly those who experience anxiety about flying. The fear of flying can stem from various psychological issues, and longer flight durations may exacerbate these concerns. Therefore, the researchers stress the necessity of policy changes to facilitate the required transformations in the aviation sector. Ultimately, the report advocates for a comprehensive approach to reduce aviation's carbon footprint, aiming for a 50% reduction in fuel burn by 2050, which would help return emissions to levels seen in 2019. This ambitious goal underscores the critical need for innovation and systemic change in the aviation industry to address climate change effectively.