Scientists show how smarter flight decisions could help fight climate change

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🗞️ Driving the news: A new tool developed by researchers at the University of California (UC) is offering a smarter way for the aviation sector to make decisions that could help mitigate climate change
• The Global Warming per Activity tool, published in Nature, measures the climate impact of various aviation activities, including fuel consumption, contrail formation, and nitrogen oxide emissions
• The tool can also quantify risks, helping airlines and regulators optimize their decisions

🔭 The context: Aviation contributes significantly to global warming through carbon dioxide emissions, nitrogen oxides, and the creation of contrails, which can have lasting atmospheric effects
• While efforts to reduce one source of pollution often increase others, the new tool allows a more nuanced evaluation of tradeoffs and long-term benefits
• The study provides a way to balance emissions reductions with other climate impacts, potentially transforming decision-making across sectors

🌍 Why it matters for the planet: By helping airlines make informed decisions that could reduce the warming potential of aviation, the tool offers a way to lower aviation’s contribution to climate change without sacrificing efficiency
• Its broader application across other industries like shipping and agriculture could lead to significant reductions in overall global warming potential
• The ability to make decisions that balance short-term emissions with long-term climate benefits could accelerate sustainable practices across sectors

⏭️ What's next: The tool could soon be used by airlines and regulators to inform flight routing decisions and emissions reduction strategies, potentially becoming a standard in the aviation industry
• Policymakers may also look to integrate this risk-based decision framework into climate regulations for the sector
• The tool’s broader applicability suggests it could influence climate policies beyond aviation, guiding industries in their efforts to reduce environmental impacts

💬 One quote: “Our findings show that we don’t have to choose between reducing carbon emissions and tackling other warming pollutants. We can find a balance that leads to meaningful progress,” said Michael Prather, lead author of the study

📈 One stat: A 3% to 5% decrease in contrails or nitrogen oxide emissions could offset a 1% increase in carbon dioxide emissions over a 100-year period, according to the study’s findings

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