News tagged with mexico

Modeling nutrient loss from Midwestern crop fields

In many Midwestern crop fields, excess water laden with nitrates drains into subsurface tile pipes and then flows into surface streams and rivers in the Mississippi River watershed. When the nutrient-rich field drainage reaches ...

dateFeb 05, 2015 in Environment
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What was the impact that killed the dinosaurs?

What suddenly made the dinosaurs disappear 65 million or 66 million years ago? Whatever it was, all indications show that it was a massive extinction event. The fossil record not only shows dinosaurs disappearing, but also ...

dateFeb 04, 2015 in Earth Sciences
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