Carbon Cycle

Basics of the Carbon Cycle and Greenhouse Effect

An introduction to the Earth's atmosphere and the greenhouse effect, and the role of the carbon cycle in determining the amount of greenhouse gases in the atmosphere.
Measuring Greenhouse Gases

Measuring Greenhouse Gases

Take a tour of the operations of the Greenhouse Gas Reference Network, and learn about the why, where and how behind the measurements of greenhouse gases.
Isotopes of Carbon Dioxide

Isotopes of Carbon Dioxide

Describes the study of isotopes of carbon dioxide and the process of measuring isotopic ratios. Users learn about both stable and radiocarbon isotopes of carbon dioxide in atmospheric science.
Ozone Poster

Ozone Poster

An overview handout for middle school students describing the basics of the ozone layer and ozone depletion.
PDF Version
In the Air Video

What's in the Air Video

The What’s in the Air video is a 13 minute look at the atmospheric monitoring efforts being put forth by NOAA’s Carbon Cycle Greenhouse Gases group, and their partners across the globe.
Information and Activities

Information and Activities for Teachers and Students

Activities designed to facilitate as well as enhance teacher instruction on a variety of topics related to Earth Science and Climate Change.

Frequently Asked Questions

Frequently asked questions about climate change, greenhouse gases, ozone depletion and air quality.