The proposed third runway at Heathrow airport, backed by Chancellor Rachel Reeves, raises serious environmental concerns. Predicted to increase CO2 emissions by 4.4 million tonnes annually, this expansion would worsen the climate crisis. While some progress has been made in sustainable aviation fuels (SAF), the government’s targets remain ambitious. The Climate Change Committee emphasizes the need for a 63% reduction in UK emissions by 2035, yet analysts doubt the feasibility of a comprehensive SAF supply chain amid rising flight demands and limited resources for sustainable fuels.
Building a third runway at Heathrow would significantly contribute to rising CO2 emissions, exacerbating climate change and extreme weather events worldwide.
The growth in demand for air travel coupled with only marginal improvements in aircraft efficiency raises concerns about the environmental sustainability of airport expansion.
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