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Climate and Civilization: The Maya Example

This activity uses geophysical and geochemical data to determine climate in Central America during the recent past and to explore the link between climate (wet periods and drought) and population ...

A Fossil Thermometer

In this activity, students calculate temperatures during a time in the geologic record when rapid warming occurred using a well known method called 'leaf-margin analysis.' Students determine the ...

The Little Ice Age: Understanding Climate and Climate Change

This is a classroom activity about the forcing mechanisms for the most recent cold period: the Little Ice Age (1350-1850). Students receive data about tree ring records, solar activity, and volcanic ...

Signs of Change: Studying Tree Rings

In this hands-on activity, students will learn about dendrochronology (the study of tree rings to understand ecological conditions in the recent past) and come up with conclusions as to what possible ...

Dendrochronology - Trees: Recorders of Climate Change

In this activity, students are introduced to tree rings by examining a cross section of a tree, also known as a 'tree cookie.' They discover how tree age can be determined by studying the rings and ...

Climate History and the Cryosphere

This teaching activity is an introduction to how ice cores from the cryosphere are used as indicators and record-keepers of climate change as well as how climate change will affect the cryosphere. ...

CO2 in the Ice Core Record

This video segment, from the 'Earth: The Operators' Manual' featuring climate expert Richard Alley, shows how ice cores stored at the National Ice Core Lab provide evidence that ancient ice contains ...

Climate Change: How Do We Know?

This static graph of changes in CO2 concentrations is going back 400,000 years, showing the dramatic spike in recent years.

Temperature and CO2 concentration in the atmosphere over the past 400,000 years

This visualization graphically displays temperature and CO2 concentration in the atmosphere as derived from ice core data from 400,000 years ago to 1950. The data originates from UNEP GRID Arendal's ...

Tree Rings: Counting the Years of Global Warming

This video describes the role that dendrochronology plays in understanding climate change, especially changes to high elevation environments at an upper tree line. Dendrochronologists from the Big ...

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