Greg Muttitt
Senior Associate
Greg Muttitt is a Senior Associate with IISD. He has over 20 years of research experience on fossil fuels and climate change, focusing on the economics and politics of energy transitions. Before joining IISD, he was Research Director at Oil Change International and Co-Director at Platform. He is the author of the book Fuel on the Fire: Oil and Politics in Occupied Iraq (Random House, 2011). He holds a Bachelor of Arts in Physics & Philosophy and a Master of Science in energy economics. He lives in the United Kingdom.
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Contact details
Additional information
- Areas of expertise
- Energy
- Subsidies
- Climate Change Mitigation
- Just Transition
- Energy Economics
- Staff type
- Experts
- Associate
- Education
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Master of Science, Energy Economics, UCL, 2020Bachelor of Arts, Physics & Philosophy, University of Oxford, 1995
Contributions
Publications
IISD Response to the United Kingdom Consultation on the Rosebank Field Development
The British government has invited input into a consultation on Equinor's application for consent for the Rosebank oil and gas field development.
Brief
November 19, 2025
Canadian Oil and Gas Production in the Global Clean Energy Transition
An economic assessment of continued oil and gas investment in Canada under three global demand scenarios, with a focus on investment returns, industry value, and government revenue.
Report
June 25, 2025
IISD Submission to the United Kingdom Consultation on Building the North Sea's Energy Future
The British government has invited input on its vision for the North Sea's clean energy future. This is the International Institute for Sustainable Development's (IISD's) response to the consultation.
Brief
April 28, 2025
A Legally Sound Oil and Gas Phase-Out
This report supports governments committed to the phase-out of oil and gas production. It provides policy-makers with tools to mitigate the legal risks of investor–state arbitration when designing and implementing phase-out policies.
Report
April 9, 2025
Articles
Legally Sound Oil and Gas Phase-Outs
To combat climate change, the world needs to start phasing out fossil fuel production. But what if investors sue? Investor–state dispute settlement (ISDS) claims allow fossil fuel companies to sue governments over phase-out policies, presenting a barrier to climate action. A recent IISD report offers guidance on how to approach fossil fuel phase-outs amid ISDS risks.
Policy Analysis
May 22, 2025
No New Fossil Fuel Projects: The logical first step in a transition to clean energy
Our experts propose a viable pathway to phase out fossil fuels, even when they are so embedded in people’s everyday lives, in the global economy, and in powerful political interests.
Insight
June 11, 2024
We Are on Course for a Very Dangerous Amount of Warming—But There Is Still Time to Change Course
Q&A with Greg Muttitt, Senior Associate at the International Institute For Sustainable Development and a lead author of the United Nations Environment Programme’s Emissions Gap Report 2023.
Insight
December 8, 2023
Countries Must Phase Out Oil and Gas Production—and Quickly
How fast do we need to phase out fossil fuels to achieve the goals of the Paris Agreement and safeguard our planet's future? A new report suggests a quicker timeline than many governments are planning.
Insight
March 23, 2022