Gibler has also reported from Oaxaca for the Canadian Broadcasting Corporation and the international edition of the Miami Herald. Before moving to Mexico, Gibler worked for various human rights and social justice organizations in Mexico, Peru, and California. He reported on environmental justice issues and water privatization in California for Public Citizen, Terrain Magazine, ColorLines, the Environmental Justice Coalition for Water, the Journal on Race, Poverty and the Environment and other independent media.

He had also followed a degree at London School os Economics, from 2000 to 2001, obtaining a first class distinction degree.

Before that he had also lived in Japan.