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Our team &


Ecosphere+ is agile and innovative. We’ve built a close-knit team of specialists in carbon markets, climate policy, corporate sustainability, ESG, ecology and international development, with a breadth of expertise that allows us to think creatively to deliver cutting-edge solutions.

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Chief Executive Officer

Lisa Walker

Lisa Walker left BG Group (now part of Royal Dutch Shell) where she served as Vice President for Environment & Climate Change to become CEO of Ecosphere+.

Lisa worked in the oil and gas sector for more than 17 years and has been closely involved in all aspects of climate change strategy development & implementation, public policy formation, coalition building and low-carbon business development. She has been actively promoting and developing carbon markets since 1999 and was a driving force behind a number of coalitions such as the UK Emissions Trading Group, the CCAC Oil & Gas Methane Partnership, the Sustainable Gas Institute and the CEO-led Oil & Gas Climate Initiative (OGCI).

Before BG Group Lisa held various roles at BP including Director of the BP Carbon Ventures corporate VC fund focused on development of a diversified carbon finance portfolio. Lisa successfully secured capital for a number of innovative investments including forestry, REDD+, sustainable land management, carbon farming, low-carbon technologies and bio-energy, including a number of first-of-their-kind deals for the private sector such as investment in the World Bank’s Forest Carbon Partnership Facility (FCPF).

In 2017, Lisa was recognised as a Young Global Leader by the World Economic Forum. Read about this achievement here.

Lisa recently was featured on CNBC news discussing climate risk as a financial risk, see here.

Lisa is based in London and lives on a small farm in Surrey with her husband (also a climate change expert), four children and three step-children.

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Technical Manager

Daniel Fisher

Daniel is Technical Manager, helping the Ecosphere+ team with all things project related, from bringing onboard new projects to technical support questions for clients.

He is a graduate of the University of Birmingham where he studied Geography. He is excited about the incredible technical work that is being developed such as mapping and GIS to protect, restore and track the world’s most vulnerable areas. With these tools he is helping to tell the story and positive impact of our amazing projects on the ground. In his free time and weekends, Daniel attends church, loves to travel and plays a range of sports including rowing and hockey. 

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Communications & Engagement Manager

Sophie Katherine

Sophie is responsible for communications and engagement at Ecosphere+. She joins Ecosphere+ after managing communications for a London-based environmental policy group. Sophie holds a Bachelors in Political Science and Sociology from the University of Illinois at Urbana-Champaign, and first became interested in nature-based solutions when interning in Kenya at a forest carbon REDD+ project. Sophie enjoys getting outdoors and exploring the UK’s AONB (or National Parks when back home in the US!).

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Carbon Portfolio Manager

Greg Morris

Greg is Carbon Portfolio Manager at Ecosphere+. He joins Ecosphere+ having completed his postgraduate studies in International Political Economy at the London School of Economics. Before Ecosphere+, he worked at a think tank advising governments on energy policy development in Asia and Africa. In his spare time he loves travelling, gardening, playing guitar, and trying not to come last at his local pub quiz.

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Operations & Sales Coordinator

Alicia Hudson

Alicia is responsible for internal sales processes and operations at Ecosphere+. She holds a Bachelor of Science in Zoology from Newcastle University and has a long-standing passion for conservation and the natural world. She joins Ecosphere+ with a diverse background in commercial operations and management. In her spare time, Alicia enjoys experiencing new cultures and being outdoors. She often travels and particularly loves art and music.

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The Ecosphere+ team hold positions on multiple professional member organisations for the voluntary carbon market and sustainable business.

Carbon market partners

We are partnered with several leading data providers in the voluntary carbon market. To drive transparency in the market, we report all of our transactions* to our data partners.

*Client data is always confidential