New York City's hidden old-growth forests

In the popular imagination, New York City is a mass of soaring steel-frame skyscrapers. But many of the city's 1 million buildings are not that modern. Behind their brick-and-mortar facades, its numerous 19th- and early 20th-century ...

One in six historic resources in Colorado is in a floodplain

Colorado has lost several of its important historic landmarks to disasters. The 2013 floods, for instance, destroyed a WPA-era shelter in Lyons and severely damaged the town's historic library. In the aftermath of these events, ...

EPA, other agencies seek more careful review of oil pipeline

The Environmental Protection Agency and two other federal agencies have asked the U.S. Army Corps of Engineers to more carefully review and revise its preliminary plan for the Dakota Access oil pipeline, saying it should ...

Study shows disaster plans often neglect historic preservation

New research from the University of Colorado Denver shows many communities fail to take historic preservation into account when planning for natural disasters, risking a loss of heritage and critical engines of the local ...

Study looks at early Navajo use of smoke signals

(AP) -- Archaeologists and volunteers armed with special flares will fan out over part of the Four Corners region on Saturday to study how early Navajos could have used smoke signals to warn against invaders.