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Earth Science  
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In this self-paced tutorial, learners examine data to determine the relative contribution of what we call natural climate cycles and that of human-caused greenhouse gases to contemporary climate change. Changes in the Earth-Sun geometry over time... (View More)

This self-paced tutorial investigates evidence for contemporary climate change by examining multi-year weather, statistical and anecdotal records obtained from several U.S. localities. Learners plot and identify trends in regional weather data,... (View More)

This textbook chapter reviews the scientific evidence for global warming, presents proxy climate data, and discusses the increase in scientific knowledge as evidenced in the series of IPCC reports since 1990. The likelihood of a globe with doubled... (View More)

Readings in this chapter guide student reflection on sustainability of the planet, and whether the Earth system is near a tipping point, where ecosystems will reorganize and seek a new equilibrium, with consequences for biodiversity. The resource... (View More)

In this textbook chapter, students examine the data from Mauna Loa to see that the concentration of carbon dioxide in the atmosphere is increasing. The seasonal signal observed in the data is explained by the growth cycle of plants in the Northern... (View More)

Audience: High school
Materials Cost: Free

In this self-paced tutorial, learners explore the personal choices students make every day as resource consumers, and how those decisions contribute to the climate health of our planet. Multimedia educational resources such as video clips, digital... (View More)

This textbook chapter introduces the buffalo as a keystone species, and describes the environmental impacts of its near extinction, including today’s predominance of non-native species in the Great Plains. Human activities that contribute to... (View More)

This tutorial provides the evidence that the amount of CO² in the atmosphere has not been as high as it is currently for nearly half a million years and that this increase corresponds with data that human activity is responsible. Learners examine... (View More)

In this case study, students read about the Canopy Crane at Wind River, a project that enables the study of Earth system interactions that take place high in the tree canopy. The chapter profiles scientists, studying birds, fungi, chemical transfer... (View More)

In this self-paced tutorial, examine evidence of climate change from different parts of the Earth’s system and consider what it means to live on a planet with a dynamically changing climate. The resource includes multimedia resources such as video... (View More)