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Discipline Specific Core Concepts is Ecological Core Concepts -- Human impacts -- Agriculture and resource harvesting
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View Resource Issues in Ecology, Issue 15: Excess Nitrogen in the U.S. Environment: Trends, Risks, and Solutions

It is not surprising that humans have profoundly altered the global nitrogen (N) cycle in an effort to feed 7 billion people, because nitrogen is an essential plant and animal nutrient. Food and...

View Resource Issues in Ecology, Issue 15: Press Release

This January 2012 press release introduces and describes the significance of issue #15 of ESA's Issues in Ecology series, "Excess Nitrogen in the U.S. Environment: Trends, Risks, and Solutions."

View Resource Melting Glaciers on Mt. Kilimanjaro

This pair of Landsat images shows the rapid loss of the fabled glaciers and snowfields crowning Mt. Kilimanjaro between 1993 and 2000. With the snow and ice nearly gone, the volcano's crater is...

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View Resource Growing Plants for Fuel: Predicting Effects on Water, Soil, and the Atmosphere

This report looks at both the grain and cellulose-based “bioenergy landscapes” and review what is known about their biogeochemical impacts. This report will also explore the complexity of factors...

View Resource Grasslands, Rangelands, and Agricultural Systems

This report explores how switchgrass (Panicum virgatum L.), a native perennial cellulosic grass, may become the center of biofuel production in some parts of the Great Plains and Midwest. This...

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