Science

Conservative group challenges the consensus on global warming
Minnesota legislators heard testimony from scientists, religious leaders and even a polar explorer at an unusual joint committee hearing on global warming. What they didn't hear were any voices urging them not to pass laws to curb greenhouse gases. So on March 8, the American Property Coalition held its own conference: "What science really says about global warming."
The search for missing bees
Beekeepers are losing their hives by the hundreds, and no one seems to know where the bees are going. Our experts discuss the so-called "colony collapse disorder" and its impact on U.S. Agriculture.
What's making America fat?
David Kessler, who went after the tobacco industry when he was FDA commissioner, has now set his sights on America's rising obesity rates. Kessler spoke about the causes of and possible solutions to the obesity problem in a conversation at the University of Minnesota in February.
State archeologist rejects findings at Walker site
Sharp divisions are developing over an archeological site in Walker. Some archeologists say the site could be among the oldest human sites in the country. Minnesota's state archeologist rejects the claims.
Challenges to stem cell research
Stem cell research proponents have convinced some states to fund research, but the controversy continues over whether using embryonic stem cells crosses an ethical line. Experts on both sides debate where stem cell research is headed.
University of Minnesota officials say discrepancies found in promising stem cell research appear to be mistakes, and not deliberate fabrications. A journal determined U of M stem cell researcher Catherine Verfaillie doubled up some data.
Minnesota Historical Society closes Grand Mound burial site
The Minnesota Historical Society has permanently closed the Grand Mound History Center near International Falls. The 2,200-year-old burial mounds are the largest surviving prehistoric structure in the upper Midwest.
Explorer Ann Bancroft heads back to the North Pole
Ann Bancroft talks about her latest planned North Pole expedition. This time, it's not so much about being the first to do something new. She says the trip will also raise awareness about global warming.