The now-buried Tibbetts Brook once wound its way across the undeveloped land of the Bronx. A mobile wetlands is raising awareness for the river's daylighting.
For today's Untapped Mailbag, we dug up the inside scoop about how they dye the Chicago River as well as how "green" or eco-friendly the practice actually is.
NYC plans to coat 6 million square feet of the city's roofs.
You've heard of green roofs, but what about blue roofs and cool roofs? Here's where to check them all out in NYC.
Wellness surges from a geological fault beneath Hungary.
Untapped Cities Gets a Sneak Preview of the Gardens by the Bay and its Flower Dome
Those DEP signs about the drinking water are actually part of a guerilla marketing campaign.