The Most Incredible Geysers On Earth is the title of a great photo essay on Environmental Graffiti. If you’re a teacher of Earth Science or Environmental Science this could be a great resource for introducing a lesson on geothermal energy. If you are looking for more resources for teaching about geothermal energy you may want to check out these resources from the Google Earth Blog.

In case you’re not familiar with it, Environmental Graffiti regularly features photo essays of some of most interesting and unique natural occurrences on Earth.