With Climate Change, Poison Ivy May Get Itchier
Bad news for the estimated 80 percent of the human population that's allergic to the dreaded—and abundant—leaves of three.
The Weed Scientist Who Brought Down the Wrath of Stalin
Nikolai Ivanovich Vavilov's hypothesis on the evolution of rye is now accepted. But in the 1930s, his research got him arrested.
How Poison Ivy Works
Where poison ivy comes from, why it gives some people such terrible reactions, and why—unfortunately for hikers and gardeners—its future is bright.
Cover Crops Are Making a Comeback
Farmers looking increase yields and maintain healthy soil are trying the old technique of planting cover crops again.