Staff Bios

C2ES staff is a diverse and dedicated group of professionals with expertise in areas ranging from public policy to environmental science to economics.

For details on each staff member, click on the names below.

Kyle Aarons Solutions Fellow	Katie Mandes VP, Community Engagement Director, Make an Impact
Joe Casola Staff Scientist Program Director, Science and Impacts	John Marzabadi Administrative/Accounts Payable Assistant
Eileen Claussen President	Amy Morsch Program Manager, Make an Impact
Adria Cooper Office Manager/Executive Assistant	Nick Nigro Senior Manager, Transportation Initiatives
Meg Crawford Markets & Business Strategy Fellow	Marty Niland Communications Manager
Elliot Diringer Executive Vice President	Janet Peace VP, Markets & Business Strategy
Sarah Dougherty Finance Fellow	Laura Rehrmann Senior Communications Manager
Patrick Falwell Solutions Fellow	Manik Roy VP, Strategic Outreach
Matt Frades Transportation Fellow	Stephen Seidel Senior Advisor
Judi Greenwald VP, Technology and Innovation	Flor Teng Receptionist/Administrative Assistant
Jay Gulledge Senior Advisor	Joan Triggs Chief Financial Officer
Dan Huber Science & Policy Fellow	Michael Tubman Senior Fellow
Timothy Juliani Director of Corporate Engagement	Sonya Tung Web Project Manager, Make an Impact
Robert Leipold Director of Development	Doug Vine Senior Energy Fellow
	Jason Ye Fellow