A short video on the causes of ocean acidification and its effects on marine ecosystems.

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

A suite of hands-on activities to give students the opportunity to describe the shape and appearance of clouds and learn the types of weather that are associated with clouds. The module includes outdoor observation, group work, and creative/artistic activities.

This video provides an overview of changes happening in the Arctic.

This video is one of a series of videos from the Switch Energy project. It describes three types of geothermal sources -- rare ones in which high temperatures are naturally concentrated near the surface, deep wells that require fracturing the rock and then circulating water to bring heat to the surface, and low temperature sources that use constant temperatures just below the surface to heat or cool a building. The latter two are more widely available but cost-prohibitive today.

This video shows where and how ice cores are extracted from the West Antarctic Ice Sheet. The cores are cut, packaged, flown to the ice core storage facility in Denver, further sliced into samples, and shipped to labs all over the world where scientists use them to study indicators of climate change from the past.

This series of four animations shows how some of the key indicators of climate change (average global temperature, sea level, sea ice extent, carbon emissions) have changed in Earth's recent history.

This video succinctly explains the mechanism of the natural greenhouse effect and the cause of global climate change (anthropogenic global warming). It is short, basic, and to the point. It's also available in 12 languages!

This short video clip is part of a longer video series titled How Climate Effects Community Health. This clip focuses on human health risks from extreme heat events caused by increasing global temperatures.

This activity challenges students to try and meet the world's projected energy demand over the next century, decade by decade, by manipulating a menu of available energy sources in the online Energy lab simulator all while keeping atmospheric CO2 under a target 550ppm.

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