Walker is counsel in the Climate Projects practice at Philip Lee (US) LLP, specialising in carbon markets, climate project development, and the structuring and negotiation of commercial arrangements relating to climate solutions and carbon credits.
Walker advises clients across the voluntary and compliance carbon markets, including project developers, investors, corporate buyers and other market participants, on the development, funding, commercialisation and attribution of climate projects and environmental products. His practice includes advising on carbon credit transactions, project implementation arrangements, offtakes, corporate climate programmes, and the contractual and regulatory frameworks that govern climate solutions.
Walker also brings extensive experience advising on the regulatory dimensions of climate and energy markets. He counsels clients on compliance and market design issues arising under U.S. state and federal frameworks relating to greenhouse gas regulation, electricity markets and public utility service, and advises at the intersection of voluntary standards, climate claims, mandatory reporting and emerging regulation.
Before joining Philip Lee (US) LLP, Walker practised for more than a decade at a national law firm based in Seattle, where he advised clients on a broad range of carbon, climate and clean energy matters.
Philip Lee LLP was recognised as Best Law Firm in voluntary carbon markets by Environmental Finance in 2023, 2024 and 2025.
Recent Work
