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The Universe at Your Fingertips 2.0 DVD from the Astronomical Society of the Pacific is in our online store, filled with Earth and space science resources.

Video courtesy of the NSF.

Past Matching of Global Temperature and CO2 Levels

Earth's global climate has been warming for the past 150 years. The main cause of this warming is an increase in the concentration of carbon dioxide (CO2) in the atmosphere. In the past, global average temperature and carbon dioxide levels have changed in sync. When CO2 levels were high, temperature was high. When CO2 levels were lower, temperature was reduced. What does CO2 have to do with global temperature? Carbon dioxide is a greenhouse gas. It warms Earth via the greenhouse effect. When there is more CO2, the greenhouse effect is stronger, so global temperature rises.

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Last modified September 10, 2010 by Randy Russell.

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The Spring 2010 issue of The Earth Scientist focuses on the ocean, including articles on polar research, coral reefs, ocean acidification, and climate. Includes a gorgeous full color poster!

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA