Mexico has emerged as a major player in the world heroin trade, and it now trails only Afghanistan in poppy...
Updated: March 22, 2014, - 09:45 PM
The Minnesota Zoo's master plan lays out ambitious additions, including a horde of new animals – converting the Northern Trail...
Updated: March 30, 2013, - 02:20 PM
The oil and gas industry has been revolutionized in the last decade by a technique known as hydraulic fracturing, or hydro-fracking, or simply "fracking."
Updated: September 30, 2012, - 07:33 AM
Fresh water for animal habitats, bathrooms, fountains and drinking water.
Updated: December 01, 2008, - 07:38 PM
SOURCES: Minnesota Pollution Control Agency; Minnesota Energy Office; "The Environment Equation," by Alex Shimo-Barry; Alliance for Sustainability; National Geographic Green Guide; Living Green Expo; greenguardian.org; Consumer Reports; reduce.org.
Updated: April 26, 2008, - 04:32 PM
The efficiency of ethanol plants in the U.S. has increased over the last 20 years to produce up to 2.8...
Updated: September 28, 2006, - 11:52 PM
Officials will take three steps to eliminate the ice that slowed Hiawatha light-rail trains through the northbound tunnel under the...
Updated: November 16, 2005, - 10:00 PM
Updated: March 01, 2005, - 10:00 PM
Updated: June 23, 2004, - 11:00 PM