Earth's climate is a mind bogglingly complex system of interdependent parts and teaching about that system is no easy task. This site from NOAA climate.gov provides all the resources teachers need to bring the subject to life. Educators may wish to start with the featured resources, which update regularly. The information-thick e-pamphlet, Teaching Climate Literacy, is another great feature that highlights seven essential principles for informed climate decisions. Educational resources and tools can be browsed by topic, including: Climate Systems, Causes of Climate Change, Measuring & Modeling Climate, Climate Impacts, Human Responses to Climate, and Nature of Climate Science.