(Photo: The tunnel boring machine excavating the Delaware Aqueduct Bypass Tunnel. Credit: NYC Water on YouTube) The world’s longest tunnel…
After an unusually dry winter, a late-season storm finally soaked California in early March, piling up several feet of snow…
Education Images/UIG via Getty Images Lake Mead is the country’s biggest reservoir of water. Think of it as the savings…
Two months ago, as winter in the Southern Hemisphere turned to spring, authorities in Cape Town grew nervous. After the…
The demise of the Maya civilization Something really drastic must have happened to end the Classic Maya Period in the…