During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well.
Geoscience Fun
Please check out the following geoscience fun links for resources you can use in your classroom. You can also search all available resources. If you are a member of NESTA, you can submit resources to share with others, as well as save resources you'd like to use in "My NESTA". If you're not a member of NESTA, join NESTA today.
