For activists, scientists, and designers, images from the river's past hold the key to imagining its future.

Two hundred years of environmental change have meant both destruction and conservation of the most interesting river in America.

Hidden in Central Park, the remains of a 19th century reservoir that fell out of fashion.

As a pit deepens in Chile, a pile rises in New York City. Dan Adams and Marie Law Adams chart the story of New York's relationship with one mineral — from explosions on a faraway salt flat, across oceans, and to its landing in a dynamic mountain on Staten Island's North Shore.

Catherine Seavitt presents the process of an experimental landscape architecture studio and a framework of adaptive design strategies that merge ecosystem restoration with infrastructures to protect communities in Jamaica Bay.

Eric Rothstein lets us in on the particular challenges of restoration, mitigation, and water resources management in New York and offers a measured but optimistic assessment of the role of green infrastructure in fostering sustainable urban development.

Thomas Outerbridge explains the infrastructure of recycling in New York City, touching on how public awareness, household participation, and new recycling technologies can contribute to reducing waste.