100 years ago, Tibbetts Brook meandered it's way through the Bronx wetlands, sustaining an enormous ecosystem on the edge of the booming industry of Manhattan.

As the city began to stretch and grow, development was planned to the North and the wetlands were paved over. Water flowing into the estuary was dammed in Van Cortlandt Lake, and Tibbetts Brook was buried into the Broadway sewer. A century later, what seemed like a tidy solution has proven itself to be a mess, with combined sewer overflow the leading cause of pollution in the Harlem River. In addition to water pollution, flooding plagues Marble Hill and the neighborhoods surrounding Van Cortlandt Park, further splintered by a century of poor urban planning which has fractured and isolated this area of the Bronx.

CALL dedicates its Spring 2018 Appeal to projects advocating for a solution.