Transport decarbonization is critical to meeting the objectives of the Paris Agreement and to achieving climate neutrality.

The Transport Decarbonisation Alliance is a unique international collaboration between countries, cities/regions and companies to accelerate the worldwide transformation to net-zero-emission mobility before 2050.



The Transport Decarbonisation Alliance currently has 29 members, drawn from countries, cities/regions, and companies  interested in working on strategies to achieve the low-carbon transport objectives established on the Paris agreement:

The transport sector is the fastest-growing source of emissions and currently accounts for 24% of the global energy-related greenhouse gas emissions.

That percentage is still rising. 

The International Energy Agency (IEA) estimates that to achieve the Paris Agreement’s below-2°C scenario, emissions from transport will need to drop by more than two-thirds. At the moment, however, transport is the fastest-growing fossil fuel-dependent sector.

Emissions from transport are set to rise about 50% by 2050. Shifting to cleaner transport is not only essential if we are to meet Paris Agreement targets, carbonfree transport is also key to building back better, creating an equitable, green and attractive recovery from our current health and economic crises.


The synergy of the TDA members:

Accelerating the transition to zero-emission transport requires countries, cities/regions, and companies to communicate and collaborate in an unprecedented fashion.

For instance, manufacturers of electric vehicles (EVs) need to know there will be both a market for their products, as well as the charging infrastructure required to make their vehicles attractive to consumers before putting major investment into EV production. Meanwhile, fleet owners and other buyers need to know that EVs and charging infrastructure will be available.

Governments can catalyse shifts in the market by lowering risks on both sides with policies that encourage charging infrastructure, financial incentives to produce and buy EVs, and other policies such as zero-emission zones for passenger vehicles and freight in urban centres.

Similarly, to reduce GHG emissions through active mobility - walking and cycling for example - cities need to work with local businesses to redesign downtown areas and implement policies that promote safety and convenience for pedestrians and cyclists.


The TDA community is engaged in:

  1. Communities of Interest (CoIs), where members collaboratively develop policy recommendations, reports, online courses and other products or outcomes important to them
  2. Working streams for key thematic themes such as Decarbonising Transport Together Series (advocacy and outreach), TDA Academy Series (a space for learning and sharing) and The Alliance Talks (a space for collective action, networking and dialogue)


How do members participate in the TDA?

  • Connecting and working with leading colleagues in other countries, cities/regions and companies on one of the most exciting frontiers of our time
  • Playing an active role in international forums on climate change, transport and sustainable development
  • Demonstrating leadership at international events as well as at gatherings of the private sector and local and regional governments


Some achievements of the Alliance

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Laurent Mignaux / Terra

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Further information


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