After training as an architect, Cameron Sinclair (then age 24) joined Kate Stohr to found Architecture for Humanity, a nonprofit that helps architects apply their skills to humanitarian efforts. Starting with just $700 and a simple web site in 1999, AFH has grown into an international hub for humanitarian design, offering innovative solutions to housing problems in all corners of the globe.
Whether rebuilding earthquake-ravaged Bam in Iran, designing a soccer field doubling as an HIV/AIDS clinic in Africa, housing refugees on the Afghan border, or helping Katrina victims rebuild, Architecture for Humanity works by Sinclair's mantra: "Design like you give a damn." (Sinclair and Stohr cowrote a book by the same name, released in 2006.)
A regular contributor to the sustainability blog Worldchanging.com, Sinclair is now working on the Open Architecture Network, born from the wish he made when he accepted the 2006 TED Prize: to build a global, open-source network where architects, governments and NGOs can share and implement design plans to house the world.