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🗞️ Driving the news: The UK government is endorsing the construction of a third runway at London's Heathrow Airport, aiming to boost economic growth and connectivity
• To mitigate the environmental impact, the strategy heavily relies on sustainable aviation fuels (SAF) and carbon capture technologies
• However, experts express concerns about the feasibility and scalability of these technologies

🔭 The context: SAFs are derived from sources like used cooking oil, synthetic fuels, or biofuels from plants
• The UK government has mandated that airlines replace 10% of their aviation fuel with SAF by 2030, increasing to 22% by 2040
• Despite these targets, SAF production remains limited and costly, casting doubt on its ability to significantly reduce emissions in the near term

🌍 Why it matters for the planet: Expanding Heathrow could lead to a substantial increase in air traffic, exacerbating greenhouse gas emissions
• The reliance on unproven technologies like SAF and carbon capture to offset these emissions is risky, as their current capabilities are insufficient to meet ambitious climate goals
• This approach may undermine the UK's commitment to achieving net-zero emissions by 2050

⏭️ What's next: The success of the UK's "Jet Zero" strategy hinges on rapid advancements in SAF and carbon capture technologies
• Significant investments and policy support will be necessary to scale these solutions effectively
• Without such progress, the environmental costs of airport expansion may outweigh the anticipated economic benefits

💬 One quote: "You are growing something that doesn’t have the option of being decarbonized right now." — Alice Larkin, professor of climate science and energy policy at the University of Manchester

📈 One stat: The UK government projects that fossil fuels will still account for over 75% of airline fuel usage beyond 2040, despite targets for SAF integration

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