The 27th Global Conference on Environmental Taxation (GCET27) will take place from 14 to 16 September 2026 in Berlin, Germany, hosted by the Potsdam Institute for Climate Impact Research (PIK).

GCET is a long-standing international conference series dedicated to environmental taxation and market-based policy instruments, bringing together leading researchers, policymakers, and practitioners from around the world.

Conference Theme

The 2026 edition focuses on:
“Fiscal Instruments for International Climate Action”

The conference explores how fiscal and market-based instruments—such as carbon pricing, subsidy reform, and internationally coordinated levies—can support effective and equitable climate action aligned with the Paris Agreement. Particular attention is given to cross-border dynamics, including trade, competitiveness, and carbon leakage, as well as the mobilisation of financial resources for a just transition.

Key Topics

The programme will address three core thematic areas:

  • International cooperation and coordination (e.g. climate clubs, carbon border adjustment mechanisms, minimum standards)
  • Climate finance and just transitions (distributional impacts, acceptability, and global equity considerations)
  • Implementation, sectors and law (including international sectors such as aviation and shipping, and legal and trade dimensions)

Conference Format

The conference will be held in person and will include:

  • Keynote lectures
  • Policy-oriented panels
  • Parallel scientific sessions
  • Networking opportunities, including a welcome reception and conference dinner

Keynote Speakers

Important Dates

  • 18 February 2026 – Call for abstract submission
  • 15 April 2026 – Submission deadline
  • 20 May 2026 – Notification of decisions & opening of registration
  • 20 August 2026 – Presenters’ registration deadline
  • 14–16 September 2026 – GCET27 Conference
  • 15 October 2026 – Deadline for submission of papers for possible publication in Critical Issues in Environmental Taxation

Participation

The conference is expected to host around 150 participants, with a strong international representation, including experts from environmental and resource economics, public finance, climate policy, political economy, and related legal and institutional fields.

Awards and Publications

The programme includes community-building elements such as the Young Researcher Award.

Selected papers may be invited (subject to peer review) for publication in the “Critical Issues in Environmental Taxation” series (Edward Elgar).

Organisation

Inclusivity

The organisers are committed to ensuring diversity and inclusivity, including gender balance and broad international participation across all roles and sessions.

👉 For more information

Please visit the official conference website