Brooklyn-based studio Tri-Lox intervenes on the city’s waste stream, repurposing wood to furnish everything from Shake Shack interiors to Shakespeare in the Park.

For high school students in the Climate Resilience Leadership Lab, emergency preparedness means mobilizing the neighborhood.

In the middle of a paved Midtown park, tunnel air whirs through 46 huge fans.

The energy revolution in the waterways is only beginning. Locally, the currents along this stretch of the East River make it a logical place to start.