When Maureen Long talks to the public about her work, she likes to ask her audience to close their eyes and think of a ...

Recent shifts in U.S. trade policy have called free trade into question, threatening over three decades of progress shaped by ...

The speed at which new ocean floor is created varies from one location on the ocean ridge to another. Between North America and Europe, the rate is about 2.2 inches (3.6 cm) per year. At the East ...

North America is the third largest continent in the world. It is located in the Northern Hemisphere. The north of the continent is within the Arctic Circle and the Tropic of Cancer passes through ...