New Zealand's Aviation Emissions: A Growing Concern Amid Government Ambitions

Strategic Insights -

New Zealand's government is focused on stimulating economic growth through tourism and aviation, but the country's aviation emissions are a growing concern. With international commitments to reduce emissions and a goal of net-zero carbon emissions by 2050, the government is expected to announce a decision on whether to include emissions from international aviation and shipping in New Zealand's net zero target next month. The aviation sector's contribution to New Zealand's greenhouse gas emissions is significant, and the government's strategy to address this issue is being scrutinized.

Key Takeaways:

  • The aviation sector is expected to grow by 3.8% annually over the next 20 years, driven by passenger traffic growth.
  • New Zealand's international aviation and shipping emissions are equivalent to about 9% of the country's net domestic emissions, and could grow to a third of domestic net emissions by 2050 without action to reduce emissions.
  • The government's action plan for aviation focuses on regulation, innovation, economic growth, and emissions reduction, but the plan's ambition and targets for emissions reduction are unclear.
  • Sustainable Aviation Aotearoa (SAA) was established in 2022 to provide advice and coordination to accelerate the decarbonisation of New Zealand's aviation sector, but has failed to achieve its core purpose.
  • The Interim Aviation Council has no environmental representation and assigns no actions to the Ministry for the Environment, which is crucial for regulating emissions.
  • International aviation is a large, unregulated source of emissions, and New Zealand's plan to cut aviation emissions is already overdue.
  • Other countries, such as the United Kingdom, have implemented sustainable aviation fuel mandates and plans to reduce emissions, but acknowledge that additional measures such as carbon removal and demand management will be required.

Statistics:

  • New Zealand's international aviation and shipping emissions are equivalent to about 9% of the country's net domestic emissions.
  • By 2050, if no action is taken to reduce emissions, these emissions could grow to a third of domestic net emissions.
  • In 2024, the first outgoing legs of flights from New Zealand emitted 3.5 million tonnes of carbon dioxide, equivalent to 12% of all domestic emissions from fossil fuels (coal, oil, gas) combined.
  • The UK's sustainable aviation fuel mandate began this year and will strengthen every year, with airlines facing penalties of about NZ$11 per litre for missing targets.
  • By 2050, the UK's action plan estimates that most options for aviation decarbonisation will rely on new technology, but acknowledges the uncertain nature of technology readiness and cost of technology over time.

Sources:

  • The Conversation (Au and NZ) -- By Robert McLachlan, Professor in Applied Mathematics, Te Kunenga ki Pʽrehuroa -- Massey University
  • The Climate Change Commission's report on New Zealand's net zero target
  • The International Civil Aviation Organization (ICAO) goal of net-zero international aviation emissions by 2050
  • The UK's sustainable aviation fuel mandate and action plan for aviation decarbonisation