Tree Rings: Counting the Years of Global Warming part of CLEAN Collection

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 ...

Back to the Future: Climate Edition part of CLEAN Collection

This activity engages students through an exploration using real data of paleoclimate proxies, such as ice cores, tree rings, and sedimentary analysis that provide evidence for past climates.

Dendrochronology - Trees: Recorders of Climate Change part of CLEAN Collection

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 ...

Educator Guide: Lab 1- Launching an Expedition part of CLEAN Collection

Students are charged with thinking about what it takes to 'do science'. They are introduced to the science of dendrochronology and learn how tree-ring science is executed.

Oceans and Atmosphere Example part of CLEAN Collection

This unit allows students to investigate past changes in Earth's climate. Students first explore relationships in climate data such as temperature, solar radiation, carbon dioxide, and ...

Decoding Ice Cores: Proxy and Direct Measurement part of CLEAN Collection

This two-part lab series from the US Ice Drilling Program teaches students about the process of science. It supports an understanding of how scientists use direct and indirect measurements to gain ...