Julien Perez

As Managing Director for OGCI and OGDC, Julien is responsible for overall management of the strategy and execution, coordinating actions and commitments, managing relations with institutions and external stakeholders, developing external policy views and providing strategic direction to drive future development of both organizations. Prior to OGCI, Julien headed Climate & Energy Services at EY where he helped companies set up and implement low-carbon strategies. Julien also worked at TotalEnergies where he coordinated climate change actions and at Aecom managing environmental liabilities for various industries. Julien holds an Environmental Engineering degree from Agro ParisTech, an MSc in Energy and Climate Economics from Dauphine, an advanced degree in Climate Change Management and Natural Capital from Yale, and an Executive MBA from HEC in France.

Session Overview

Tuesday, 4 November

14:35

Decarbonisation Conference Room A 14:35 - 15:20

Methane reduction in a divided regulatory landscape: what it means for decarbonisation

The United States and European Union have adopted distinct regulatory approaches when it comes to reducing methane emissions and advancing global decarbonisation goals. Initially bolstered by the Inflation Reduction Act and reinforced by EPA methane rules, the U.S. framework now faces headwinds following the 2025 One Big Beautiful Bill Act, which scales back clean energy support and signals a broader rollback of federal climate incentives. This shift has introduced new uncertainty around the durability and direction of U.S. methane policy. Meanwhile, the EU’s Methane Regulation, implemented in 2024, enforces strict monitoring, reporting and reduction requirements that extend to fossil fuel imports, positioning the trading bloc as a leader in methane mitigation. Greater regulatory consistency would be a boon for operators, who are also dealing with non-binding and irregularly implemented agreements such as the Global Methane Pledge, data gaps, monitoring challenges, and economic and infrastructure barriers. Companies must take a pragmatic approach to compliance and investment, balancing technological solutions with policy uncertainty to keep decarbonisation goals within reach.

Attendee insights:

Explore how stakeholders are adapting strategies, managing compliance costs and trade risks, and investing in mitigation technologies to navigate diverging methane regulations across key markets.