Now that you know about the world you call home, EARTH 043 is your introduction into how we take care of it. This course takes a look at the resources that populate the spheres (biosphere, atmosphere, geosphere, hydrosphere, and cryosphere). It looks at how we use those resources, renew them, deplete them, and waste them. EARTH 043 covers topics that help you be a good citizen of the Earth. This course is the second in a two-part series (EARTH 041 and EARTH 043).