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Air and greenhouse gas pollution from private jets, 2023
The report fills a gap in our understanding of aviation’s environmental impact by providing the first detailed global mapping of air and climate pollution from private jets.

The International Civil Aviation Organization’s CAEP/13 aircraft noise standards
This policy brief outlines the proposed noise standards recommended by CAEP.

Fuel burn of new commercial jet aircraft: 1960 to 2024
Stricter fuel efficiency standards and policies are needed to drive further reductions in aircraft fuel burn, especially for new aircraft types and freighters, to align with aviation’s net-zero emissions goal.

Lifetime emissions from aircraft under a net-zero carbon budget
To meet the international goal of net-zero carbon dioxide emissions by 2050, all new aircraft delivered after about 2035 will need to emit zero net CO2 emissions throughout their operational lifetimes.

Feasibility study of future energy options for Great Lakes shipping
Evaluates future energy options for Great Lakes shipping, analyzing alternative fuels and technologies against environmental regulations, costs, and emissions, aiming to guide the industry towards decarbonization by 2050.

Financing zero-emission vessel shipbuilding in China
Analyzes the economic and policy challenges of building zero-emission vessels in China, underscoring the higher costs and how an international carbon price could help finance the transition to environmentally friendly shipping.

Regulating international aviation emissions without market distortion
Models the market impacts of regional carbon taxes on airfares via two regulatory approaches, accounting by country of operator registration and accounting by country of departure.

Towards Net-Zero Aviation State Action Plans
This briefing assesses the clarity of 17 differentiated state action plans submitted by countries around the world to meet the International Civil Aviation Organization’s goal of achieving net-zero aviation emissions by 2050.

ICAO’s 2050 net-zero CO2 goal for international aviation
Analyzes the ICAO commitment to creating a global net-zero CO2 aviation sector by 2050
Aviation climate finance using a global frequent flying levy
Analyzes the potential of a tax on individuals who fly often to raise revenue for the decarbonization of aviation