With more than 40 areas of specialization and a combined 100+ years of experience in their fields, CSG consultants have the know-how, expertise and understanding to help with any sustainability projects, no matter how large or small.


Areas of Specialization:

Urban Sustainability

Urban Design and Planning

Campus Planning

Organizational Change

Internal and External Collaboration

Sustainable Education and Communication

Marketing and Advertising

Graphic Design




Christina Markel, Consultant
Coldstream Sustainability Group

MCP from The Massachusetts Institute of Technology, Cambridge, MA; BFA from The California College of the Arts, San Francisco, CA; BA from Reed College, Portland, OR

Christina Markel's passion is communication, both verbal and non-verbal. Originally trained as an oil painter and researcher, she broadened her reach by entering the world of advertising as an art director at the Ogilvy and Mather advertising firm. While designing ads for IBM’s national and worldwide campaigns, she became interested in sustainability and the ways that city form communicates shared cultural values. To further explore these concepts, she entered MIT’s prestigious School of Architecture and Planning where she focused on the organizational changes facilitated by systems thinking, the impacts of psychology on urban planning and elegant design. She is currently at Sasaki Associates, an urban design, architecture and planning firm in the Boston area, where she works on strategy and planning.