Author Susan Dworkin talks about her book, “The Viking in the Wheat Field: A Scientist’s Struggle to Preserve the World’s Harvest,” and how scientists are working to collect seeds and find strains of wheat resistant to the powerful wheat disease called Ug
Emerging Science Note/Nanorust
Tiny magnetic particles of rust may clean dirty drinking water in developing countries.
Hungry Bears
Climate change – in the form of warmer, wetter weather – is encouraging European blister rust to infect pine nut trees in Yellowstone. As Jyl Hoyt reports, this could be disastrous for grizzly bears, who rely on pine nuts for food.