The five newest National Recreation Trails in six states add nearly 400 miles to the network of more than 1,300 trails.

The geographies of upward mobility show U.S. regions that emphasize investments in the common good over economic libertarianism do better ...

It’s the Fourth of July — when fine particulates fill the air. The impact fireworks can have on air quality can be quite striking and seemingly outsized given their relatively small explosive force.

The West is filled with land that helps to preserve vital wildlife habitats, according to conservation groups and ecologists.

Sorry, I don’t know where travel books are, but over there … More Chicago Than Chicago: Soon as I finished Peter Orner’s “The ...

Since the emergence of the Zika virus epidemic in 2014 and the associated novel sequalae that emerged, much has been learned about the effects of antenatal exposure to Zika virus. Zika virus in ...