This chapter of the GLOBE Teacher's Guide presents information on how to characterize soil profiles and measure soil moisture and temperature. K-12 students from all over the world are participating in the Global Learning and Observations to Benefit the Environment (GLOBE) program by taking environmental measurements at their schools and sharing their data via the Internet. Measurement protocols and ... Full description.

This collection of over 1000 geoscience images is made available to the geoscience community and general public for the purposes of enhancing Earth education, and serving the community of science that the American Geological Institute supports. This digital archive was released to the public in June 2003, after nearly a year of work acquiring, scanning, and indexing images. Users may search, browse ... Full description.

NASA's Visible Earth is a searchable directory of images, visualizations, and animations of the Earth. The images are also listed under the following categories: agriculture, atmosphere, biosphere, cryosphere, human dimensions, hydrosphere, land surface, oceans, radiance or imagery, solid earth, locations, and satellites. Accompanying each image are credits, data about the image, the satellite it ... Full description.

The AAAS (American Association for the Advancement of Science Atlas of Population and Environment is an important analysis of the relationships between human population and the environment. Through text, maps, and diagrams, the Atlas illustrates how population affects the world's ecosystems and natural resources both in the short and long term. Using sophisticated mapping and graphic techniques, the ... Full description.

GreenHouse Gas Online catalogues greenhouse gas related articles published in over 100 peer-reviewed journals from around the world. Only journal articles with freely available abstracts are included. The latest general news and journal articles can be found listed by title, while links to archived material is available by topic. Pages devoted to background information on the various greenhouse gases, ... Full description.