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Tag archives for Mississippi River

Geography in the News: The Gulf of Mexico’s Dead Zone

By Neal Lineback and Mandy Lineback Gritzner, Geography in the NewsTM The Gulf’s Growing Dead Zone With rising demand over the past decade for the corn-based fuel additive ethanol, American farmers have grown more corn than at any time since World War II. Unfortunately, the nitrogen fertilizer being applied to cornfields is contributing to a…

Geography in the News: Asian Carp

By Neal Lineback and Mandy Lineback Gritzner, Geography in the NewsTM Invasive Asian Carp An aggressive invasive species—the Asian carp—is threatening the Great Lakes. Able to consume one-third of its body weight in a day, the carp can grow up to five feet (152 cm) long. It also reproduces very quickly. Its presence may spell…