Our second conversation from 'Next Up: The LA River' is with Marissa Christiansen, Senior Policy Director of Friends of the Los Angeles River. FOLAR, as the non-profit is known, turned 30 this year, and was founded on the mission to "protect and restore the natural and historic heritage of the Los Angeles river and its riparian habitat through inclusive planning, education and wise stewardship." Its role in much of the river's discourse has often included reminding all parties involved that the river is indeed a natural river, and host to a diverse ecosystem—despite its characterization as the "world's largest storm drain" ever since the Army Corps of Engineers paved most of it for flood control in the 1930s. Christiansen trained as an urban planner before joining FOLAR this year, and spoke with Archinect's Nicholas Korody about the organization's history within the river's redevelopment, its focus on reconnecting people with the river's immense natural resources, and the delicate balance between conservation, revitalization and gentrification.